TY  - JOUR
AU  - Rachůnek, Jiří
TI  - Directed convex subgroups of ordered groups
JO  - Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
PY  - 1973
SP  - 39
EP  - 46
VL  - 13
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUPO_1973__13_1_a3/
LA  - en
ID  - AUPO_1973__13_1_a3
ER  -