000
00283nam a2200109 4500
008
160616s 000 0
245
_a
Partial differential equations of mathematical physics
100
_a
Sobolev, S.L
500
_a
B334obC K4
942
_c
BK
_2
BK3820
080
_a
517.95 SOB
999
_c
3820
_d
3820