000 00283nam a2200121Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aJoos, Georg
245 0 _aTheoretical Physics
250 _a2ND ED.
260 _bBlackie And Son
_aLondon
_c1957
650 _aPhysics
942 _cBK
999 _c7112
_d7112