TY  - JOUR
AU  - Jr., K. D. Magill
AU  - Misra, P. R.
AU  - Tewari, U. B.
TI  - Epimorphisms From S(X) onto S(Y)
JO  - Canadian journal of mathematics
PY  - 1986
SP  - 538
EP  - 551
VL  - 38
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1986-026-3/
DO  - 10.4153/CJM-1986-026-3
ID  - 10_4153_CJM_1986_026_3
ER  -