TY  - JOUR
AU  - Tymchatyn, E. D.
TI  - Partial Orders on the 2-Cell
JO  - Canadian mathematical bulletin
PY  - 1975
SP  - 411
EP  - 416
VL  - 18
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-075-x/
DO  - 10.4153/CMB-1975-075-x
ID  - 10_4153_CMB_1975_075_x
ER  -