TY  - JOUR
AU  - K. Urbanik
TI  - On some numerical constants associated with abstract algebras
JO  - Fundamenta Mathematicae
PY  - 1966
SP  - 263
EP  - 288
VL  - 59
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-59-3-263-288/
DO  - 10.4064/fm-59-3-263-288
LA  - en
ID  - 10_4064_fm_59_3_263_288
ER  -