TY  - JOUR
AU  - H. Zieschang
TI  - On decompositions of discrete groups of motions of the plane
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1981
SP  - 193
EP  - 215
VL  - 36
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1981_36_1_a5/
LA  - en
ID  - RM_1981_36_1_a5
ER  -