00321nam a2200109Ia 4500008004100000082002500041100002400066245004400090260005200134300001000186650001500196140113s9999    xx            000 0 und d  a576.311:537.533.6 J3  a"Frey-Wyssling, A."  aSubmicroscopic morphology of protoplasm  b"Amsterdam : Elsevier publishing company, 1953"  a411p.  aProtoplasm