000
00251nam a2200109 4500
008
160616s 000 0
245
_a
Trigonometrical series
100
_a
Zygmund, Antoni
500
_a
B36M J5
942
_c
BK
_2
BK3950
080
_a
517.51 ZYG
999
_c
3950
_d
3950