00469nam a2200145Ia 4500003000900000008004100009040001600050080001700066100002000083245011700103260006800220300001000288650001200298650001300310IN-BaIIA211028s9999 xx 000 0 eng d cIIA Library a53(047)bPHY aPedersen, C. I. 0aReports on progress in physicsbvol. XXXI, pt. IcPedersen, C. I.  aLondonbThe Institute of Physics and the Physical Societyc1968 a417p. aPhysics aProgress