Boundary-value problems in ordinary differential equations
1960 ◽
pp. 141-260
1988 ◽
Vol 8
(3)
◽
pp. 239-248
◽
2014 ◽
Vol 58
(1)
◽
pp. 183-197
◽
1972 ◽
Vol 4
(4)
◽
pp. 509-522
◽
1998 ◽
Vol 97
(2)
◽
pp. 455-470
◽
1980 ◽
Vol 10
(1)
◽
pp. 35-58
◽
2011 ◽
Vol 217
(24)
◽
pp. 10355-10360
◽
1974 ◽
Vol 26
(3)
◽
pp. 670-678
◽