%0 Journal Article
%A Carlton J. Maxson
%T Semigroups of order-preserving partial endomorphisms on trees, I
%J Colloquium Mathematicum
%D 1974
%P 25-37
%V 32
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-32-1-25-37/
%R 10.4064/cm-32-1-25-37
%G en
%F 10_4064_cm_32_1_25_37