000
00306nam a2200109Ia 45e0
008
181001s1969 xx 000 0 und d
100
_a
Murphy G.M
245
0
_a
Differential equations & Their solutions
260
_b
Van Nostrand
_c
1969
300
_a
451
942
_2
ddc
_c
BK
999
_c
1586
_d
1586