$a Banach principle for the ideal convergence in the classical and noncommutative context / Grażyna Horbaczewska, Adam Skalski. - Łódź, 2007.
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$a www.maths.lancs.ac.uk/~skalski/
670
$a www.maths.lancs.ac.uk/department/info/people/person/skalski $b (prac nauk. Department of Mathematics and Statistics, Lancaster University, United Kingdom)