000 00253nam a2200121Ia 4500
008 211209s1974 xx 000 0 und d
041 _aeng
082 _a516 N74 AND/SHU
100 _aANDREEV P
245 _aGEOMETRY
260 _c1974
300 _a256
999 _c15216
_d15216