TY  - JOUR
AU  - Ellis, Martin H.
TI  - Catching and Missing Finite Sets
JO  - Canadian mathematical bulletin
PY  - 1978
SP  - 419
EP  - 425
VL  - 21
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-074-9/
DO  - 10.4153/CMB-1978-074-9
ID  - 10_4153_CMB_1978_074_9
ER  -