By Graef J.R.   in Journal of Difference Equations and Applications

ISSN:1023-6198|8|11|1033-1052

Taylor & Francis Ltd‎(2002)‎

Access to resources Favorite 17.287497

By Graef J.R.   Qian C.   in Journal of Mathematical Analysis and Applications

ISSN:0022-247X|203|2|388-400

Academic Press‎(1996)‎

Access to resources Favorite 14.371535

By Graef J. R.   Qian C.   in Czechoslovak Mathematical Journal

ISSN:0011-4642|52|4|757-769

Springer Publishing Company ‎(2002)‎

Access to resources Favorite 4.920694