TY  - JOUR
AU  - Beesack, Paul R.
TI  - Correction
JO  - Canadian mathematical bulletin
PY  - 1973
SP  - 623
EP  - 623
VL  - 16
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1973-101-2/
DO  - 10.4153/CMB-1973-101-2
ID  - 10_4153_CMB_1973_101_2
ER  -