TY  - JOUR
AU  - Spencer, Joel
TI  - Intersection Theorems for Systems of Sets
JO  - Canadian mathematical bulletin
PY  - 1977
SP  - 249
EP  - 254
VL  - 20
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1977-038-7/
DO  - 10.4153/CMB-1977-038-7
ID  - 10_4153_CMB_1977_038_7
ER  -