%0 Journal Article
%A Materna, Pavel
%T An intensional approach to questions
%J Kybernetika
%D 1979
%P -192
%V 15
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KYB_1979__15_3_a0/
%G en
%F KYB_1979__15_3_a0