TY  - JOUR
AU  - K. Urbanik
TI  - Effective processes in the sense of H. Steinhaus
JO  - Studia Mathematica
PY  - 1958
SP  - 335
VL  - 17
IS  - 3
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/STUMA_1958__17_3_216924/
LA  - en
ID  - STUMA_1958__17_3_216924
ER  -