TY  - JOUR
AU  - Zamfirescu, Tudor
TI  - On Planar Continuous Families of Curves
JO  - Canadian journal of mathematics
PY  - 1969
SP  - 513
EP  - 530
VL  - 21
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-059-1/
DO  - 10.4153/CJM-1969-059-1
ID  - 10_4153_CJM_1969_059_1
ER  -