Search results
Journal of Mathematical Analysis and Applications > 2011 > 376 > 1 > 154-161
Fundamenta Mathematicae > 1998 > 157 > 2-3 > 261-276
Journal of Mathematical Analysis and Applications > 2011 > 376 > 1 > 154-161
Fundamenta Mathematicae > 1998 > 157 > 2-3 > 261-276