000
00248nam a2200109 4500
008
160616s 000 0
245
_a
Commutative normed rings
100
_a
Gelfand, I
500
_a
B43 K42
942
_c
BK
_2
BK3036
080
_a
517.98 GEl
999
_c
3036
_d
3036