Journal of Mathematical Analysis and Applications
Journal of Mathematical Analysis and Applications > 2013 > 398 > 1 > 189-197
Journal of Mathematical Analysis and Applications > 2013 > 400 > 2 > 363-376
Journal of Mathematical Analysis and Applications > 2013 > 407 > 2 > 183-189
Journal of Mathematical Analysis and Applications > 2013 > 407 > 2 > 350-358