Positive solutions of periodic boundary value problems for second-order differential equations with the nonlinearity dependent on the derivative
2014 ◽
Vol 49
(1-2)
◽
pp. 343-355
◽
2003 ◽
Vol 281
(1)
◽
pp. 99-107
◽
2009 ◽
Vol 39
(3)
◽
pp. 843-852
◽
2008 ◽
Vol 200
(1)
◽
pp. 123-132
◽
1973 ◽
Vol 13
(1)
◽
pp. 32-47
◽
1989 ◽
Vol 2
(3)
◽
pp. 131-138
◽
2014 ◽
Vol 4
(16)
◽
pp. 2352-2360
1997 ◽
Vol 28
(6)
◽
pp. 983-997
◽