Dahlund, Mats Aspects of the complex chemistry of olsalazine, 3,3 - azo - bis (6-hydroxybenzoic acid) / by Mats Dahlund. - 1989. - 34 S. : fig. Includes bibliogr. references. ISBN: 9155424392 Subjects--Index Terms: ქიმია Universal Decimal Class. No.: 54