TY - JOUR A1 - Rateike, Franz-Matthias A1 - Siebourg, W. A1 - Schmid, H. A1 - Anders, S. T1 - Birefringence - An important property of plastic substrates for magneto-optical storage disks / W. Siebourg ; H. Schmid ; F. M. Rateike ; S. Anders ; U. Grigo ; H. Löwer JF - Polymer engineering & science / Society of Plastics Engineers. 30 (1990), H. 18 Y1 - 1990 SN - 0032-3888 SP - 1133 EP - 1139 ER -