%0 Journal Article
%A John W. Rutter
%T A classification of secondary cohomology operations
%J Colloquium Mathematicum
%D 1975
%P 241-243
%V 34
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-34-2-241-243/
%R 10.4064/cm-34-2-241-243
%G en
%F 10_4064_cm_34_2_241_243