TY  - JOUR
AU  - Phelps, K. T.
TI  - Direct Product of Derived Steiner Systems Using Inversive Planes
JO  - Canadian journal of mathematics
PY  - 1981
SP  - 1365
EP  - 1369
VL  - 33
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-105-7/
DO  - 10.4153/CJM-1981-105-7
ID  - 10_4153_CJM_1981_105_7
ER  -