TY - JOUR A1 - Ruhmann, Ralf A1 - Thiele, T. A1 - Prescher, Dietrich A1 - Wolff, Dietmar T1 - A phase polymorphism N-SAd-I in liquid crystalline polymethacrylates with 4'-trifluoromethoxy-azobenzene mesogenic side groups Y1 - 1995 ER -