00506nam a2200157Ia 4500003000900000008004100009040001600050080001700066100002100083245006800104260003900172650002200211942000700233999001500240952009300255IN-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  cBK  c1750d1750  00104070aBANbBANcGENd0000-00-00l0o53(047)/ PHYp1916r2021-11-05w0000-00-00yBK