Existence of positive solutions for boundary-value problems of second-order delay differential equations
2005 ◽
Vol 18
(6)
◽
pp. 621-630
◽
2005 ◽
Vol 301
(2)
◽
pp. 457-476
◽
Multiple positive solutions for boundary value problems of second-order delay differential equations
2002 ◽
Vol 15
(5)
◽
pp. 575-583
◽
2007 ◽
Vol 326
(1)
◽
pp. 641-654
◽
2010 ◽
Vol 233
(9)
◽
pp. 2189-2199
◽
2005 ◽
Vol 24
(2)
◽
1996 ◽
Vol 130
(2)
◽
pp. 333-355
◽
1972 ◽
Vol 12
(1)
◽
pp. 129-147
◽
1993 ◽
Vol 14
(6)
◽
pp. 573-580
◽