000 00368nam a2200169Ia 4500
003 0STCL
008 150530s9999 xx 000 0 und d
040 _aSTCL
_cSTCL
100 _aGupta, P.P.; Others
245 _aMathematical physics
250 _aFirst
260 _c1970
546 _aEnglish
942 _2ddc
_cBK
999 _c28113
_d28113
005 20220125170121.0