000 00292nam a2200121 4500
008 160616s 000 0
245 _aIntrinsic geometry of surfaces
100 _aAleksandrov, A.D
100 _aZalgaller, V.A
500 _aB632 K7
942 _cBK
_2BK3379
080 _a514.144 ALE
999 _c3379
_d3379