TY  - JOUR
AU  - Karl Menger
TI  - Is w a function of u?
JO  - Colloquium Mathematicum
PY  - 1958
SP  - 41
EP  - 47
VL  - 6
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-6-1-41-47/
DO  - 10.4064/cm-6-1-41-47
LA  - en
ID  - 10_4064_cm_6_1_41_47
ER  -