TY  - JOUR
AU  - Mingo, James A.
TI  - On the Non-Isomorphism of and
JO  - Canadian mathematical bulletin
PY  - 1990
SP  - 264
EP  - 267
VL  - 33
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-043-8/
DO  - 10.4153/CMB-1990-043-8
ID  - 10_4153_CMB_1990_043_8
ER  -