TY  - JOUR
AU  - Asvald Lima
TI  - An application of a theorem of Hirsberg and Lazar.
JO  - Mathematica Scandinavica
PY  - 1976
SP  - 325
EP  - 340
VL  - 38
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1976__38_166478/
ID  - MS2_1976__38_166478
ER  -