%0 Journal Article
%A Steffens, K.
%T Matchings in Countable Graphs
%J Canadian journal of mathematics
%D 1977
%P 165-168
%V 29
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-016-8/
%R 10.4153/CJM-1977-016-8
%F 10_4153_CJM_1977_016_8