TY  - JOUR
AU  - S. Duplij
TI  - Some abstract properties of semigroups appearing in superconformal theories.
JO  - Semigroup forum
PY  - 1997
SP  - 253
EP  - 260
VL  - 54
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1997__54_2_135524/
ID  - SF_1997__54_2_135524
ER  -