000
00264nam a2200109 4500
008
160616s 000 0
245
_a
Group theory in non-linear problems
100
_a
Barut, A.O. Ed.
500
_a
B27 L49
942
_c
BK
_2
BK5452
080
_a
512.54 GRO
999
_c
5452
_d
5452