000 00285nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a514.22
_bPON
100 _aPontryagin, L.S.
245 _aFoundations of combinatorial topology
260 _bN.Y. Graylock Press
_aRochester
_c1952
999 _c142043
_d142043