TY  - JOUR
AU  - Janez Ušan
TI  - About a Class of (n,m)−Groups
JO  - Mathematica Moravica
PY  - 2005
SP  - 77 
EP  -  86
VL  - 9
IS  - 1
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/MM3_2005_9_1_a10/
ID  - MM3_2005_9_1_a10
ER  -