TY  - JOUR
AU  - Jasem, Milan
TI  - Weak isometries in directed groups
JO  - Mathematica slovaca
PY  - 1994
SP  - 39
EP  - 43
VL  - 44
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1994__44_1_a3/
LA  - en
ID  - MASLO_1994__44_1_a3
ER  -