TY  - JOUR
AU  - Solomon Leader
TI  - On a Problem of Alfsen and Fenstad.
JO  - Mathematica Scandinavica
PY  - 1963
SP  - 44
EP  - 46
VL  - 13
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1963__13_165849/
ID  - MS2_1963__13_165849
ER  -