TY  - JOUR
AU  - O'Shaughnessy, C. D.
TI  - On the Block Structure of Quartic Designs
JO  - Canadian mathematical bulletin
PY  - 1971
SP  - 377
EP  - 389
VL  - 14
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-068-3/
DO  - 10.4153/CMB-1971-068-3
ID  - 10_4153_CMB_1971_068_3
ER  -