000 00431nam a2200181 4500
008 160616s1989 000 0
245 _aEuler characteristic
100 _aShashkin, Yu A.
260 _aMoscow
260 _bMir Publishers
260 _c1989
300 _a95
440 _aLittle Mathematics Library
020 _a503000274X
650 _aEuler characteristic
942 _cBK
_2BK26319
080 _a512 SHA
999 _c26319
_d26319