TY  - JOUR
AU  - Angel Gutiérrez
AU  - Salvador Romaguera
TI  - A note on a paper of J.A. Guthrie and M. Henry
JO  - Fundamenta Mathematicae
PY  - 1987
SP  - 247
EP  - 248
VL  - 127
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-127-3-247-248/
DO  - 10.4064/fm-127-3-247-248
LA  - en
ID  - 10_4064_fm_127_3_247_248
ER  -