Journal of Mathematical Analysis and Applications
Journal of Mathematical Analysis and Applications > 2003 > 277 > 2 > 670-680
Journal of Mathematical Analysis and Applications > 2003 > 281 > 2 > 565-574
Journal of Mathematical Analysis and Applications > 2003 > 284 > 2 > 733-755
Journal of Mathematical Analysis and Applications > 2003 > 286 > 2 > 577-600