TY  - JOUR
AU  - I. Levi
AU  - S. Seif
TI  - Range sets and partition sets in connection with congruences and algebraic invariants.
JO  - Semigroup forum
PY  - 1993
SP  - 285
EP  - 293
VL  - 47
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1993__47_2_135278/
ID  - SF_1993__47_2_135278
ER  -