000 00309nam a2200121 4500
008 160616s 000 0
245 _aTwo dimensional manifolds of bounded curvature
100 _aAleksandrov, A.D
100 _aZalgaller, V.A
500 _aB632 K71
942 _cBK
_2BK3380
080 _a514.144 ALE
999 _c3380
_d3380