%0 Journal Article
%A Markowicz, Joanna
%A Prus, Stanisław
%T Properties of modulus of monotonicity and Opial property in direct sums
%J Annales Universitatis Mariae Curie-Skłodowska. Mathematica 
%D 2017
%V 71
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUM_2017_71_2_a5/
%G en
%F AUM_2017_71_2_a5