Acta Crystallographica Section C

Crystal Structure Communications

Volume 46, Part 8 (August 1990)

• research papers
  • inorganic compounds
  • metal-organic compounds
  • organic compounds
• short format
  • metal-organic compounds
  • organic compounds
• short communications

research papers

inorganic compounds

Acta Cryst. (1990). C46, 1359-1360    [doi:10.1107/S0108270189012369]

Structure of K₄OBr₂

K. Hippler, S. Sitta, P. Vogt, H. Sabrowsky and L. Walz

Acta Cryst. (1990). C46, 1361-1362    [doi:10.1107/S010827018901262X]

Structure of synthetic zeolite Na-P2

S. Hansen, U. Håkansson and L. Fälth

Acta Cryst. (1990). C46, 1363-1364    [doi:10.1107/S0108270189013260]

Structure of a high-silica variety of zeolite Na-P

U. Håkansson, L. Fälth and S. Hansen

Acta Cryst. (1990). C46, 1365-1368    [doi:10.1107/S0108270189011650]

Structure of trisodium hydrogenorthosilicate monohydrate

R. L. Schmid and J. Felsche

Acta Cryst. (1990). C46, 1368-1370    [doi:10.1107/S0108270189013338]

K₂Mo₃AIP₈O₂₈: a tunnel structure isotypic with Na_0.5MoP₂O₇

A. Leclaire, M. M. Borel, A. Grandin and B. Raveau

Acta Cryst. (1990). C46, 1370-1373    [doi:10.1107/S0108270189013259]

Thomsonite, a neutron diffraction study at 13 K

K. Ståhl, Å. Kvick and J. V. Smith

Acta Cryst. (1990). C46, 1373-1376    [doi:10.1107/S0108270189013351]

Structure of synthetic dipotassium zinc tetrasilicate

S. Kohara and A. Kawahara

Acta Cryst. (1990). C46, 1376-1378    [doi:10.1107/S0108270189013375]

Room-temperature structure of La₂O₂S₂

J. Ostoréro and M. Leblanc

Acta Cryst. (1990). C46, 1378-1381    [doi:10.1107/S0108270189013703]

Structure du Cu(HPO₃H)₂

M. Sghyar, J. Durand, L. Cot and M. Rafiq

Acta Cryst. (1990). C46, 1381-1383    [doi:10.1107/S0108270189013727]

Non-stoichiometry in the KMo₂P₃O₁₂-tunnel structure: the oxide K_0.75MoNbP₃O₁₂

A. Leclaire, M. M. Borel, A. Grandin and B. Raveau

Acta Cryst. (1990). C46, 1383-1385    [doi:10.1107/S0108270189012618]

Structure of barium copper pyrosilicate at 300 K

J. Janczak, R. Kubiak and T. Glowiak

metal-organic compounds

Acta Cryst. (1990). C46, 1385-1388    [doi:10.1107/S0108270189012072]

Structure of pentakis(methylammonium) undecabromodibismuthate

J. Matuszewski, R. Jakubas, L. Sobczyk and T. Glowiak

Acta Cryst. (1990). C46, 1388-1391    [doi:10.1107/S0108270189012539]

Structure of 2-(1-hydroxyethyl)-1-ferrocenecarboxylic acid methyl ester

Y. Luo, R. J. Barton and B. E. Robertson

Acta Cryst. (1990). C46, 1391-1394    [doi:10.1107/S0108270189011960]

1-(2,2'-Bipyridine)-2-methyl-3-(trimethylsilyl)-2,3-dicarba-1-plumba-closo-heptaborane(6)

U. Siriwardane, K.-J. Lu and N. S. Hosmane

Acta Cryst. (1990). C46, 1394-1396    [doi:10.1107/S0108270189013181]

Structure of potassium hydrogen cyclopropane-1,1-dicarboxylate hemihydrate

A. Dubourg, E. Fabregue, L. Maury and J.-P. Declercq

Acta Cryst. (1990). C46, 1397-1399    [doi:10.1107/S0108270189012497]

Structure of trimeric diphenyltin(IV) sulfide

A. J. Edwards and B. F. Hoskins

Acta Cryst. (1990). C46, 1399-1402    [doi:10.1107/S0108270189012631]

Structure of [PhCH₂NMe₃]₂[(B₁₀H₁₂)₂Pt]

S. A. Macgregor, L. J. Yellowlees and A. J. Welch

Acta Cryst. (1990). C46, 1402-1405    [doi:10.1107/S0108270189012424]

A (dithioformato)rhodadicarbaborane complex: 3-(dithioformato-S,S')-3-(triphenylphosphine)-1,2-dicarba-3-rhoda-closo-dodecaborane(12) cyclohexane solvate, [3-(S₂CH-S,S')-3-(PPh₃)-3,1,2-RhC₂B₉H₁₁\].C₆H₁₂

G. Ferguson, S. Coughlan, T. R. Spalding, X. L. R. Fontaine, J. D. Kennedy and B. Stíbr

Acta Cryst. (1990). C46, 1405-1407    [doi:10.1107/S0108270189012096]

Tetraaqua-₄-(phenylenediaminetetracetato-O¹:O²:O³,O⁴,N:O⁵,O⁶,N¹)-dicopper(II) dihydrate

C. Ruiz-Pérez, M. L. Rodríguez, F. V. Rodríguez-Romero, A. Mederos, P. Gili and P. Martín-Zarza

Acta Cryst. (1990). C46, 1407-1410    [doi:10.1107/S0108270189013363]

Structure of tetraphenylphosphonium tetracyanooxo[N-o-tolylhydroxylaminato(2-)-O,N]molybdate(VI)

F. Ridouane, J. Sanchez, H. Arzoumanian and M. Pierrot

Acta Cryst. (1990). C46, 1410-1414    [doi:10.1107/S0108270189013053]

-(⁵:⁵-Pentamethylcyclopentadienyl)-bis[⁵-pentamethylcyclopentadienylruthenium(II)] hexafluorophosphate (1) and [2(⁵)-cyclopentadienyl]--[1(⁵):2(⁵)-pentamethylcyclopentadienyl]-[1(⁵)-pentamethylcyclopentadienyl]osmium(II)ruthenium(II) hexafluorophosphate (2)

P. O. Lumme, U. Turpeinen, A. R. Kudinov and M. I. Rybinskaya

Acta Cryst. (1990). C46, 1414-1416    [doi:10.1107/S0108270189013041]

Structure of triaqua[N-(5-bromosalicylidene)-L-tryptophanato]nickel(II) dihydrate

M. L. Rodríguez, C. Ruiz-Pérez, F. V. Rodríguez-Romero, M. S. Palacios and P. Martín-Zarza

Acta Cryst. (1990). C46, 1417-1419    [doi:10.1107/S0108270189012783]

Structure of ₃-pentafluorophenylimido-₃-phenylimido-tris[tricarbonylruthenium(0)]

H.-K. Fun, O. Shawkataly, R. Othman, S.-G. Teoh and T.-S. Yeoh

Acta Cryst. (1990). C46, 1419-1422    [doi:10.1107/S0108270189012564]

Structure du bis(2-propanol)-bis--(2-propanolato)-hexakis(2-propanolato)dicérium(IV)

P. Toledano, F. Ribot et C. Sanchez

Acta Cryst. (1990). C46, 1422-1424    [doi:10.1107/S0108270189013399]

Struktur des dimeren Diazenato-Hydrazido-Komplexes (-OCH₃)₂[Mo{NNC(O)SCH₃}{H₂NNC(O)SCH₃}(ON{C₂H₅}₂)]₂

V. Schrenk and R. Mattes

Acta Cryst. (1990). C46, 1424-1426    [doi:10.1107/S0108270189013168]

A structural study of trichloro(tetrahydrofuran)iron(III)

F. A. Cotton, R. L. Luck and K. Son

Acta Cryst. (1990). C46, 1426-1429    [doi:10.1107/S0108270189011972]

Structures of 2,2,2,2,2-pentaammine-1-aqua-1,2-(-imidazolato-N,N')-1-(iminodiacetato-O,O',N)cobalt(III)copper(II) perchlorate trihydrate and 2,2,2,2,2,3,3,3,3,3-decaammine-1,2;1,3-di-(-imidazolato-N,N')-1-(iminodiacetato-O,O',N)dicobalt(III)copper(II) perchlorate tetrahydrate

D. Chen, Z. Liu, W. Tang, A. Dai, W. Liu, B. Wang, M. Wang and P. Zheng

Acta Cryst. (1990). C46, 1429-1432    [doi:10.1107/S0108270189012813]

Structure of a nickel(II) complex of the deprotonated anion of 3,9-dimethyl-4,8-diaza-3,8-undecadiene-2,10-dione dioxime

Y.-M. Wang, C.-S. Chung, C.-Y. Cheng and S.-L. Wang

Acta Cryst. (1990). C46, 1432-1434    [doi:10.1107/S0108270189013491]

-Arene complexes. 5. Structure of tricarbonyl(⁶-hexamethylbenzene)manganese(I) pentacarbonyliodochromate(0)

P. H. van Rooyen, L. Geer and S. Lotz

Acta Cryst. (1990). C46, 1434-1437    [doi:10.1107/S0108270189012473]

Structures of bis{N-[1-(2-pyrrolyl)ethylidene]ethylaminato}zinc(II) and bis{N-[1-(2-pyrrolyl)ethylidene]ethylaminato}copper(II)

M. Parvez and W. J. Birdsall

Acta Cryst. (1990). C46, 1437-1439    [doi:10.1107/S0108270189013430]

Structure of bis(benzene-1,2-dithiolato)gold(IV)

G. Rindorf, N. Thorup, T. Bjørnholm and K. Bechgaard

Acta Cryst. (1990). C46, 1439-1441    [doi:10.1107/S010827018901351X]

Structure of a dicopper(II) complex of the flexible, dinucleating ligand, N,N,N',N'-tetrakis(3-aminopropyl)-1,5-diamino-3-oxapentane

H. Adams, N. A. Bailey, W. D. Carlisle and D. E. Fenton

Acta Cryst. (1990). C46, 1442-1444    [doi:10.1107/S010827018901303X]

Structure of racemic dicarbonyl(6-trifluoroacetylcarvonato)iridium(I)

P. Scheer, V. Schurig and L. Walz

Acta Cryst. (1990). C46, 1444-1447    [doi:10.1107/S0108270189010917]

Structure of Au₂[S₂CN(C₂H₅)₂]₂, bis(diethyldithiocarbamato)digold(I)

D. D. Heinrich, J.-C. Wang and J. P. Fackler Jnr

Acta Cryst. (1990). C46, 1447-1450    [doi:10.1107/S0108270189012667]

Structure of bis(diphenylboron-dimethylglyoximato)nickel(II)

D. Xu, L. Lei, C. Cheng, Y. Xu, J. Chen and W. Tang

organic compounds

Acta Cryst. (1990). C46, 1450-1452    [doi:10.1107/S0108270189009017]

Structure of L-1-benzyl-4-hydroxymethyl-2-azetidinone

C. H. Lee, S.-I. Cho, E. Kim, H.-S. Shin, J. R. Ruble and B. M. Craven

Acta Cryst. (1990). C46, 1452-1454    [doi:10.1107/S0108270189012771]

Structure of tetramethylammonium bromide: a redetermination

D. J. Evans and D. L. Hughes

Acta Cryst. (1990). C46, 1454-1457    [doi:10.1107/S0108270189011534]

Structure du diammonium-1,3 propane cyclo-tétraphosphate dihydrate, [NH₃-(CH₂)₃-NH₃]₂P₄O₁₂.2H₂O

M. Bdiri et A. Jouini

Acta Cryst. (1990). C46, 1457-1461    [doi:10.1107/S0108270189010413]

Structure of 10,10',11,11'-tetrahydro-5,5'-bis-5H-dibenzo[a,d]cycloheptenylidene

G. Shoham, S. Cohen, R. M. Suissa and I. Agranat

Acta Cryst. (1990). C46, 1461-1464    [doi:10.1107/S0108270189012084]

Structure of cis-4-hydroxy-N-triphenylmethyl-L-proline methyl ester

G. Stavropoulos, D. Papaioannou, K. Karagiannis, M. Vlassi and V. Nastopoulos

Acta Cryst. (1990). C46, 1464-1467    [doi:10.1107/S0108270189011984]

11,28-Bis(chloroacetyl)-6,7,9,10,12,13,15,16,23,24,26,27,29,30,32,33-hexadecahydrodibenzo[b,q][1,4,7,10,16,19,22,25,13,28]octaoxadiazacyclotriacontine

P. L. Anelli, J. F. Stoddart, A. M. Z. Slawin and D. J. Williams

Acta Cryst. (1990). C46, 1468-1470    [doi:10.1107/S0108270189011996]

2,5,11,14,19,22,28,31-Octaoxa-8,25-diazatricyclo[30.2.2.2^15,18]octatriaconta-15,17,32,34(1),35,37-hexaene

P. L. Anelli, J. F. Stoddart, A. M. Z. Slawin and D. J. Williams

Acta Cryst. (1990). C46, 1471-1474    [doi:10.1107/S0108270189012503]

Structures of the configurational isomers of 2,2'-bis(3-chlorophenyl)[3,3'-bi-1,3-thiazolidine]-4,4'-dione

F. Benetollo, G. Bombieri, A. Del Pra, M. Basile, T. Previtera and M. G. Vigorita

Acta Cryst. (1990). C46, 1475-1477    [doi:10.1107/S0108270189012941]

Structures of 2,4-dihydro-8-methoxy-2-(p-methoxyphenyl)-4,4-dimethyl-1H-[1]benzopyrano[4,3,2-cd]indol-1-one (I) and 2,4-dihydro-8-methoxy-4,4-dimethyl-2-phenyl-1H-[1]benzopyrano[4,3,2-cd]indol-1-one (II)

C. Sudarsanakumar, S. Srinivasan, B. Chandrasekhar and S. R. Ramadas

Acta Cryst. (1990). C46, 1478-1480    [doi:10.1107/S010827018901317X]

Structure of 5-sulfosalicylic acid pentahydrate

A. Merschenz-Quack and D. Mootz

Acta Cryst. (1990). C46, 1481-1483    [doi:10.1107/S0108270189012552]

Structure du aza-3 pentanediyle-1,5 diammonium monohydrogénomonophosphate dihydrate

S. Kamoun, A. Jouini et A. Daoud

Acta Cryst. (1990). C46, 1483-1487    [doi:10.1107/S0108270189012825]

Structures of thiamine thiocyanate, thiamine thiocyanate monohydrate and thiamine tetrafluoroborate monohydrate

K. Aoki, N. Hu, H. Yamazaki and A. Adeyemo

Acta Cryst. (1990). C46, 1487-1490    [doi:10.1107/S0108270189013090]

Structure of 3,5-bis(dimethylamino)-6-phenyl-1,2,4-triazine 1-imide

P. F. Lindley, G. V. Boyd and G. A. Nicolaou

Acta Cryst. (1990). C46, 1490-1492    [doi:10.1107/S0108270189012679]

Structure of stearic acid E form

F. Kaneko, M. Kobayashi, Y. Kitagawa and Y. Matsuura

Acta Cryst. (1990). C46, 1493-1495    [doi:10.1107/S0108270189007079]

Structure d'un stéroïde triaromatique: le méthyl-17 dinor-18,19 17-cholestaheptaène-1,3,5,7,9,11,13-(20R)

A. Chiaroni, C. Riche, J. Riolo et P. Albrecht

Acta Cryst. (1990). C46, 1495-1498    [doi:10.1107/S0108270189012515]

Stereochemical studies. 123. Structures of (I) cis-transoid-cis-hexahydro- and (II) cis-cisoid-cis-hexahydro-5,8-methano-4H-3,1-benzoxazine-2(1H)-thione

A. Kapor, G. Argay, G. Stájer and G. Bernáth

Acta Cryst. (1990). C46, 1498-1500    [doi:10.1107/S0108270189012291]

Structure of 6-methyl-3,20-oxo-1,4,9(11)-pregnatrien-17-yl acetate

Z. Galdecki, P. Grochulski, Z. Wawrzak, W. L. Duax and P. D. Strong

Acta Cryst. (1990). C46, 1501-1503    [doi:10.1107/S0108270189012308]

Diethyl 2,2-difluoro-3-phenyl-1,3,2-oxazaborino[6,5-b]indole-4,9-dicarboxylate

G. Casalone and T. Pilati

Acta Cryst. (1990). C46, 1503-1507    [doi:10.1107/S0108270189013508]

Structure of -hydroximinopentyl 1-thio--D-glucopyranoside

D. A. Tocher and M. R. Truter

Acta Cryst. (1990). C46, 1507-1509    [doi:10.1107/S0108270189011716]

Structure of 5-hydroxymethyl-7,7-dimethyl-6-oxabicyclo[3.2.1]octane-1-carboxylic acid

C. Ruiz-Pérez, M. L. Rodríguez, J. D. Martín, C. Pérez, P. Morales and J. L. Ravelo

Acta Cryst. (1990). C46, 1509-1513    [doi:10.1107/S0108270189011698]

Structures of sila analogues of cyclic nucleotides

K. Ueno, K. Furusawa and T. Katsura

Acta Cryst. (1990). C46, 1513-1515    [doi:10.1107/S0108270190003705]

Structure of tetramethylammonium hydrogen phthalate

S. M. Jessen

Acta Cryst. (1990). C46, 1515-1519    [doi:10.1107/S0108270189012242]

Structures of novel calmodulin inhibitors KS504a, KS504b and KS504e

N. Hirayama and E. Shimizu

Acta Cryst. (1990). C46, 1519-1521    [doi:10.1107/S0108270189013193]

Phosphorus-nitrogen compounds. I. Structure of 2,cis-4,trans-6,trans-8-tetrachloro-2,4,6,8-tetrakis(diethylamino)cyclotetra(phosphazene)

T. Hökelek and Z. Kiliç

Acta Cryst. (1990). C46, 1522-1524    [doi:10.1107/S0108270189012989]

Structure of the bis(oxonium dichloropicrate)-dicyclohexano-18-crown-6 complex

P. Zheng, M. Wang and W. Wang

Acta Cryst. (1990). C46, 1524-1528    [doi:10.1107/S0108270189013387]

The structures of two sesquiterpene lactones

W. H. Watson and R. P. Kashyap

Acta Cryst. (1990). C46, 1528-1533    [doi:10.1107/S0108270189011480]

Neutron structure of the immunosuppressant cyclosporin A

R. B. Knott, J. Schefer and B. P. Schoenborn

Acta Cryst. (1990). C46, 1533-1536    [doi:10.1107/S0108270189011455]

Structure and stereochemistry of an acetate derivative of cacospongionolide, a new antitumoral sesterterpenoid from marine sponge Cacospongia mollior

R. Puliti, S. De Rosa, C. A. Mattia and L. Mazzarella

Acta Cryst. (1990). C46, 1536-1540    [doi:10.1107/S0108270189013715]

Structures of 2-(2-methoxyphenyl)-4H-1-benzopyran-4-one (1) and 5,7-dimethoxy-2-(2,4-dimethoxyphenyl)-4H-1-benzopyran-4-one (2) (2'-methoxyflavone and 2',4',5,7-tetramethoxyflavone)

J.-C. Wallet, E. M. Gaydou, J. Jaud and A. Baldy

Acta Cryst. (1990). C46, 1540-1542    [doi:10.1107/S0108270189013326]

Structure of 1,1,4,4-tetrakis(phenylthio)butane

G. Ferguson, B. Kaitner, B. M. Dilworth and M. A. McKervey

Acta Cryst. (1990). C46, 1542-1545    [doi:10.1107/S0108270189012461]

Structure of (E)-2-methyl-1,3-bis(2,4,5-trimethoxyphenyl)-1-pentene and 1-(2,4,5-trimethoxyphenyl)-2-methyl-3-ethyl-4,6,7-trimethoxyindan C₂₄H₃₂O₆: two asarone dimers

C. Lemini, J. J. Mandoki, R. Cruz-Almanza and R. A. Toscano

short format

metal-organic compounds

Acta Cryst. (1990). C46, 1546-1547    [doi:10.1107/S0108270190003031]

Chloro[tris(o-tolyl)phosphine]gold(I)

C. S. W. Harker and E. R. T. Tiekink

Acta Cryst. (1990). C46, 1547-1549    [doi:10.1107/S0108270190003006]

Structure of a new iodobismuthate: tetra(n-butyl)ammonium 1,2;1,2;1,2;2,3;2,3;2,3-hexa--iodo-1,1,1,3,3,3-hexaiodotribismuthate(III) (3:1)

U. Geiser, E. Wade, H. H. Wang and J. M. Williams

Acta Cryst. (1990). C46, 1549-1551    [doi:10.1107/S0108270190003924]

Bis[2-(diphenylphosphino)ethyl]phenylphosphine}chloropalladium(II) chloride

C. E. Housecroft, B. A. M. Shaykh, A. L. Rheingold and B. S. Haggerty

organic compounds

Acta Cryst. (1990). C46, 1551-1553    [doi:10.1107/S0108270190002311]

Structure at 173 K of a chiral, tricyclic aminopyranone

M. A. Minton, J. K. Whitesell, J. A. Mountzouris, K. A. Abboud and R. E. Davis

Acta Cryst. (1990). C46, 1553-1556    [doi:10.1107/S0108270190002323]

Structure at 198 K of a chiral, tricyclic aminobiphenyl

K. A. Abboud, M. A. Minton, J. K. Whitesell and R. E. Davis

Acta Cryst. (1990). C46, 1556-1558    [doi:10.1107/S0108270190000798]

Structure of the complex of imidazole and picric acid

M. Soriano-García, M. Schatz-Levine, R. A. Toscano and R. Villena Iribe

Acta Cryst. (1990). C46, 1558-1560    [doi:10.1107/S0108270190002645]

Structure of ethyl 2-acetyl-3-[5-(p-tolyl)-2-furyl]acrylate

J. Lokaj, V. Vrábel, P. Sivý, D. Ilavský and J. Jecný

Acta Cryst. (1990). C46, 1560-1561    [doi:10.1107/S0108270189010930]

Dihydro-2,3 (thiényl-3)-2 5H-benzothiazépine-1,5 one-4

Nguyen-Huy Dung, B. Viossat, J. C. Lancelot et M. Robba

Acta Cryst. (1990). C46, 1562-1563    [doi:10.1107/S0108270190003043]

Tri(2-pyridyl)methane

F. R. Keene and E. R. T. Tiekink

Acta Cryst. (1990). C46, 1563-1566    [doi:10.1107/S0108270190003146]

Structure of (±)-encecanescin

K. A. Abboud, S. H. Simonsen, N. Fang, S. Yu and T. J. Mabry

Acta Cryst. (1990). C46, 1566-1567    [doi:10.1107/S0108270190003900]

Structure of (E,E)-1,4-bis(4-pyridyl)-1,3-butadiene methanol solvate

A. Gourdon

Acta Cryst. (1990). C46, 1567-1569    [doi:10.1107/S0108270190003341]

Structure of 3,3',3''-nitrilotripropionamide

F. E. Hahn, M. Tamm, R. Weimann and J. Pickardt

Acta Cryst. (1990). C46, 1569-1570    [doi:10.1107/S0108270190001858]

Structure of a -caryophyllene derivative

Y. Matsubara, T. Uchida, T. Ono and H. Koyama

Acta Cryst. (1990). C46, 1570-1571    [doi:10.1107/S0108270190002840]

Structure of (3SR,4SR,SSR)-methyl 4-(tert-butylsulfinyl)-3-methyl-5-phenylvalerate

A. D. Redhouse

Acta Cryst. (1990). C46, 1572-1573    [doi:10.1107/S0108270190001767]

Structure of 5'-acetyl-3'-(4-bromophenyl)spiro[4H-1-benzopyran-4,2'-(3'H)-[1,3,4]thiadiazole]

A. D. Redhouse

Acta Cryst. (1990). C46, 1573-1575    [doi:10.1107/S0108270190002839]

9-Acridineethanol

P. H. Toma, K. A. Ray, J. G. Stowell and S. R. Byrn

Acta Cryst. (1990). C46, 1575-1576    [doi:10.1107/S010827019000302X]

Structure of phenethylamine hydrochloride

E. Horn, E. R. T. Tiekink, G. P. Jones, B. P. Naiola and L. G. Paleg

short communications

Acta Cryst. (1990). C46, 1577    [doi:10.1107/S0108270190003067]

Über tetraphenylphosphoniumbromid-monohydrat

V. Krug und U. Müller

Acta Cryst. (1990). C46, 1577-1578    [doi:10.1107/S0108270190003249]

Structure of potassium nitroprusside monohydrate. Corrigendum

Y. Le Page and E. E. Castellano

Acta Cryst. (1990). C46, 1578    [doi:10.1107/S010827019000662X]

Structure de la bétaïne de carboxyméthyl-1 phénylacétylamino-4 triazolium-1,2,4. Errata.

L. Dupont, O. Dideberg, B. Pirotte et J. Delarge

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