By Şerban Călin   in Journal of Difference Equations and Applications

ISSN:1023-6198|19|3|527-537

Taylor & Francis Ltd‎(2013)‎

Access to resources Favorite 20.671608

By Jebelean Petru   Popa Constantin   Şerban Călin   in Nonlinear Differential Equations and Applications NoDEA

ISSN:1021-9722|21|2|289-304

Springer Publishing Company ‎(2014)‎

Access to resources Favorite 13.575891