Journal of Mathematical Analysis and Applications
Journal of Mathematical Analysis and Applications > 2008 > 337 > 1 > 219-230
Journal of Mathematical Analysis and Applications > 2008 > 339 > 2 > 1305-1312
Journal of Mathematical Analysis and Applications > 2008 > 340 > 2 > 793-805
Journal of Mathematical Analysis and Applications > 2008 > 343 > 1 > 48-57