By Efremova L.   Makhrova E.   in Journal of Mathematical Sciences

ISSN:1072-3374|126|5|1419-1435

Springer Publishing Company ‎(2005)‎

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By Efremova L.S.   Makhrova E.N.   in Journal of Difference Equations and Applications

ISSN:1023-6198|9|3-4|381-392

Taylor & Francis Ltd‎(2003)‎

Access to resources Favorite 2.6454647