%0 Journal Article %A Zeinstra, Rein L. %T Some properties of positive superharmonic functions %J Compositio Mathematica %D 1989 %P 115-120 %V 72 %N 1 %I Kluwer Academic Publishers %U http://www.numdam.org/item/CM_1989__72_1_115_0/ %G en %F CM_1989__72_1_115_0