%0 Journal Article %A Karol Leśnik %T Monotone substochastic operators and a new Calderón couple %J Studia Mathematica %D 2015 %P 21-39 %V 227 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm227-1-2/ %R 10.4064/sm227-1-2 %G en %F 10_4064_sm227_1_2