TY  - JOUR
AU  - Bisztriczky, Tibor
AU  - Rival, Ivan
TI  - Continuous, Slope-Preserving Maps of Simple Closed Curves
JO  - Canadian journal of mathematics
PY  - 1980
SP  - 1102
EP  - 1113
VL  - 32
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-084-4/
DO  - 10.4153/CJM-1980-084-4
ID  - 10_4153_CJM_1980_084_4
ER  -