TY  - JOUR
AU  - Helmut Länger
TI  - A generalization of a theorem of Skala
JO  - Fundamenta Mathematicae
PY  - 1981
SP  - 121
EP  - 123
VL  - 112
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-112-2-121-123/
DO  - 10.4064/fm-112-2-121-123
LA  - en
ID  - 10_4064_fm_112_2_121_123
ER  -