By Koplatadze R.   Kvinikadze G.   Stavroulakis I.P.   in Georgian Mathematical Journal

ISSN:1072-947X|6|6|553-566

Springer Publishing Company ‎(1999)‎

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By Philos C.G.   Purnaras† I.K.   Stavroulakis‡ I.P.   in Journal of Difference Equations and Applications

ISSN:1023-6198|10|4|419-435

Taylor & Francis Ltd‎(2004)‎

Access to resources Favorite 12.2423725