Search results
Journal of Mathematical Analysis and Applications > 2008 > 337 > 1 > 505-515
Applied Mathematics and Computation > 2007 > 187 > 1 > 207-214
Journal of Mathematical Analysis and Applications > 2006 > 323 > 1 > 190-208
Journal of Mathematical Analysis and Applications > 2005 > 311 > 2 > 489-494