Two papers by H. M. Krishna Murthy et al. (Krishna Murthy et al., 1999; Urs et al., 1999) are retracted by the journal. This follows investigation by the University of Alabama at Birmingham, Alabama, USA, of structures deposited by H. M. Krishna Murthy. Krishna Murthy has noted that he is not in agreement with the retractions.
Krishna Murthy, H. M., Judge, K., DeLucas, L., Clum, S. & Padmanabhan, R. (1999). Acta Cryst. D55, 1370–1372. CrossRef IUCr Journals
Urs, U. K., Murali, R. & Krishna Murthy, H. M. (1999). Acta Cryst. D55, 1971–1977. CrossRef CAS IUCr Journals
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