000
00270nam a2200109 4500
008
160616s 000 0
245
_a
Mathematical theory of optimal processes
100
_a
Pontryagin, L.S
500
_a
B288 K23
942
_c
BK
_2
BK6542
080
_a
519.85 PON
999
_c
6542
_d
6542