%0 Journal Article %A Harary, Frank %A Palmer, Ed %T Enumeration of Locally Restricted Digraphs %J Canadian journal of mathematics %D 1966 %P 853-860 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-085-5/ %R 10.4153/CJM-1966-085-5 %F 10_4153_CJM_1966_085_5