Topological classification of nonhomogeneous differential equations
1995 ◽
Vol 34
(7)
◽
pp. 1147-1162
◽
1971 ◽
Vol 4
(3)
◽
pp. 173-180
◽
1976 ◽
Vol 28
(2)
◽
pp. 140-152
◽
2010 ◽
Vol 16
(5-6)
◽
pp. 411-423
◽
2004 ◽
Vol 203
(1)
◽
pp. 28-37
◽