000 00279nam a2200109Ia 4500
001 121590
008 170722s9999 xx 000 0 und d
100 _aVinnikov, I.
245 _aDrilling practice tr by V Tokmakov and ed by L Zellikoff /
700 _aFrenkel, M.
942 _cGEN
999 _c70696
_d70696