%0 Journal Article
%A Jürgen Lehn
%A Albert Ascherl
%T Two Principles for Extending Probability Measures.
%J Manuscripta mathematica
%D 1977
%P 43-50
%V 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1977__21_154454/
%F MM2_1977__21_154454