TY  - JOUR
AU  - K.D. Jr. Magill
AU  - S. Subbiah
TI  - The partially ordered collection of regular ...-classes of S(X).
JO  - Aequationes mathematicae
PY  - 1977
SP  - 91
EP  - 98
VL  - 15
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1977__15_136632/
ID  - AM2_1977__15_136632
ER  -