TY  - JOUR
AU  - Waldemar Hebisch
AU  - Adam Sikora
TI  - A smooth subadditive homogeneous norm on a homogeneous group
JO  - Studia Mathematica
PY  - 1990
SP  - 231
EP  - 236
VL  - 96
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm-96-3-231-236/
DO  - 10.4064/sm-96-3-231-236
LA  - en
ID  - 10_4064_sm_96_3_231_236
ER  -