共 25 条
[3]
Agarwal RP, 2001, NONLINEAR ANAL-THEOR, V44, P527
[6]
Anderson DR, 2006, DYNAM SYST APPL, V15, P21
[9]
Bohner M., 2003, Advances in Dynamic Equations on Time Scale, DOI DOI 10.1007/978-0-8176-8230-9