%0 Journal Article
%A Poll, Erik
%T A coalgebraic semantics of subtyping
%J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
%D 2001
%P 61-81
%V 35
%N 1
%I EDP-Sciences
%U http://www.numdam.org/item/ITA_2001__35_1_61_0/
%G en
%F ITA_2001__35_1_61_0