Journal of Mathematical Analysis and Applications
Journal of Mathematical Analysis and Applications > 2008 > 338 > 1 > 244-263
Journal of Mathematical Analysis and Applications > 2008 > 343 > 2 > 1022-1035
Journal of Mathematical Analysis and Applications > 2008 > 343 > 2 > 826-834
Journal of Mathematical Analysis and Applications > 2008 > 343 > 2 > 965-974