TY  - JOUR
AU  - Klarner, D. A.
AU  - Rivest, R. L.
TI  - A Procedure for Improving the Upper Bound for the Number of n-Ominoes
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 585
EP  - 602
VL  - 25
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-060-4/
DO  - 10.4153/CJM-1973-060-4
ID  - 10_4153_CJM_1973_060_4
ER  -