TY  - JOUR
AU  - Jacek Dziubański
AU  - Jacek Zienkiewicz
TI  - Smoothness of densities of semigroups of measures on homogeneous groups
JO  - Colloquium Mathematicum
PY  - 1993
SP  - 227
EP  - 242
VL  - 66
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-66-2-227-242/
DO  - 10.4064/cm-66-2-227-242
LA  - en
ID  - 10_4064_cm_66_2_227_242
ER  -