TY  - JOUR
AU  - Harary, Frank
AU  - Palmer, Ed
TI  - Enumeration of Locally Restricted Digraphs
JO  - Canadian journal of mathematics
PY  - 1966
SP  - 853
EP  - 860
VL  - 18
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-085-5/
DO  - 10.4153/CJM-1966-085-5
ID  - 10_4153_CJM_1966_085_5
ER  -