000
00279nam a2200121 4500
008
160616s 000 0
245
_a
Cummutative matrices
100
_a
Suprunenko, D.A
100
_a
Tyshkevich, R.I
500
_a
B245 K8
942
_c
BK
_2
BK977
080
_a
512.643 SUP
999
_c
977
_d
977