000 00265nam a2200109Ia 4500
008 160710s1977 xx 000 0 und d
100 _aGRECHKO, L G
245 _aPROBLEMS IN THEOROTICAL PHYSICS
260 _bMIR PUBLISHERS
_c1977
300 _a448
942 _2ddc
_cB
999 _c43877
_d43877