000 00288nam a2200109 4500
008 160616s 000 0
245 _aBoundary value problems of mathematical physics. v.2
100 _aStakgold, Ivar
500 _aBobc K64.1 K64.2
942 _cBK
_2BK2337
080 _a53:51 STA
999 _c2337
_d2337