Merkliste 
 1 Ergebnisse 
 
1

Periodic solutions of singular nonautonomous second order d..:

Boucherif, Abdelkader ; Daoudi-Merzagui, Naima
Nonlinear Differential Equations and Applications NoDEA.  15 (2008)  1-2 - p. 147-158 , 2008