Volume 58 Received 30 October 2001 | Diffraction physics. ErratumaLaboratoire de Minéralogie Cristallographie, Universités P. et M. Curie et D. Diderot, associé au CNRS, Case 115, 4 Place Jussieu, 75252 Paris CEDEX 05, France Owing to a copying error, the formula in §2.1(iv) of the paper by Authier & Malgrange [Acta Cryst. (1998 Keywords: diffraction physics; dynamical diffraction. |