TY  - JOUR
AU  - Copi, Irving M.
AU  - Harary, Frank
TI  - Some properties of n-adic relations
JO  - Portugaliae mathematica
PY  - 1953
SP  - 143
EP  - 152
VL  - 12
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1953__12_4_114726/
LA  - en
ID  - PORMA_1953__12_4_114726
ER  -