TY - JOUR A1 - Koetz, Joachim A1 - Kosmella, Sabine T1 - Polyelectrolyte complex formation with chitosan Y1 - 1998 ER - TY - JOUR A1 - Kosmella, Sabine A1 - Koetz, Joachim A1 - Shirahama, K. A1 - Liu, J. T1 - The cooperative nature of complex formation in mixed polyelectrolyte-surfactant systems Y1 - 1998 ER -