00355nam a2200121Ia 4500003000900000008004100009040001600050080001700066100002100083245006800104260003900172650002200211IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a53(047)bPHY  aStickland, A. C. 0aReports on progress in physicsbvol. XX, (1957)cA. C Stickland  aLondonbThe Physical Societyc1957  aPhysics, Progress