Search results
Journal of Mathematical Analysis and Applications > 2013 > 404 > 1 > 64-70
Journal of Mathematical Analysis and Applications > 2009 > 357 > 1 > 15-24
Discrete Mathematics > 2001 > 229 > 1-3 > 235-259
Journal of Mathematical Analysis and Applications > 2013 > 404 > 1 > 64-70
Journal of Mathematical Analysis and Applications > 2009 > 357 > 1 > 15-24
Discrete Mathematics > 2001 > 229 > 1-3 > 235-259