Popadyuk, A. I.     Hydrogels based on chitosan-polyvinylpyrrolidone copolymers for drug delivery [Текст] / A.I. Popadyuk, N.Yu. Solomko, O.G. Budishevska, S.A. Voronov // Abstracts of 73rd Prague meeting on macromolecules "New frontiers in macromolecular science: from macromolecular concepts of living matter to polymers for better quality of life, Czech Republic, Prague, July 5-9, 2009. — Prague, 2009. — P. 127.