TY  - JOUR
AU  - Roger Bielawski
TI  - A selection theorem for open-graph multifunctions
JO  - Fundamenta Mathematicae
PY  - 1989
SP  - 97
EP  - 100
VL  - 133
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-133-2-97-100/
DO  - 10.4064/fm-133-2-97-100
LA  - en
ID  - 10_4064_fm_133_2_97_100
ER  -