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Applied Mathematics and Computation > 2011 > 218 > 3 > 751-755
Mathematical and Computer Modelling > 2011 > 54 > 1-2 > 112-118
Computers and Mathematics with Applications > 2011 > 61 > 9 > 2816-2820
Indian Journal of Pure and Applied Mathematics > 2011 > 42 > 4 > 239-248
Monatshefte für Mathematik > 2011 > 163 > 3 > 315-325
Computers and Mathematics with Applications > 2010 > 59 > 6 > 2067-2073
Mathematica Slovaca > 2010 > 60 > 1 > 75-82
Siberian Mathematical Journal > 2010 > 51 > 1 > 48-52
Siberian Mathematical Journal > 2010 > 51 > 2 > 229-243
Journal of Mathematics and Applications > 2010 > Vol. 32 > 109-116
Applied Mathematics and Computation > 2009 > 215 > 1 > 221-226
Science China Mathematics > 2009 > 52 > 10 > 2121-2131
Siberian Mathematical Journal > 2009 > 50 > 3 > 456-466
Journal of Mathematics and Applications > 2009 > Vol. 31 > 99-106
Computers and Mathematics with Applications > 2008 > 56 > 11 > 2908-2914
Applied Mathematics Letters > 2008 > 21 > 11 > 1155-1160
Journal of Geometry and Physics > 2008 > 58 > 11 > 1540-1570
Applied Mathematics and Computation > 2008 > 199 > 2 > 653-662
Russian Mathematics > 2008 > 52 > 9 > 51-59