00297nam a2200121 a 450000500170000000800410001704100080005808200100006610000160007624500350009226400370012730000110016420260717091211.0260717s1984    ii            000 0 eng d  aeng04a539.71 aWehr, R. D.10aPhysics of atom /cWehr, R. D. 1aLondon :bAddison Wesley,c1984.  a589 p.