By Rogovchenko Y.V.   in Journal of Mathematical Analysis and Applications

ISSN:0022-247X|203|2|560-563

Academic Press‎(1996)‎

Access to resources Favorite 23.268536

By Mustafa O.G.   Rogovchenko Y.V.   in Applied Mathematics Letters

ISSN:0893-9659|16|5|753-758

Elsevier‎(2003)‎

Access to resources Favorite 16.48875