TY  - JOUR
AU  - W.L. Edge
TI  - Some implications of the geometry of the 21-point plane.
JO  - Mathematische Zeitschrift
PY  - 1965
SP  - 348
EP  - 362
VL  - 87
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1965__87_170385/
ID  - MZ_1965__87_170385
ER  -