TY - JOUR A1 - Stiller, Burkhard A1 - Köpnick, Thomas A1 - Muzikante, I. A1 - Neilands, O. A1 - Utinans, M. A1 - Dubrovich, O. A1 - Karageorgiev, Peter A1 - Brehmer, Ludwig T1 - Optically induced switching effect of polymer containing indandione-1,3-pyridinium betaine side chains Y1 - 1999 SN - 0378-2271 ER -