000
00271nam a2200121 4500
008
160616s 000 0
245
_a
Random walks
100
_a
Dynkin, E.B.
100
_a
Uspenski, V.A.
500
_a
B2815 K31
942
_c
BK
_2
BK7078
080
_a
519.23 DYN
999
_c
7078
_d
7078