@article{CM_1937__4__276_0,
author = {Whitney, Hassler},
title = {On regular closed curves in the plane},
journal = {Compositio Mathematica},
volume = {4},
year = {1937},
pages = {276-284},
zbl = {0016.13804},
language = {en},
url = {http://dml.mathdoc.fr/item/CM_1937__4__276_0}
}
Whitney, Hassler. On regular closed curves in the plane. Compositio Mathematica, Tome 4 (1937) pp. 276-284. http://gdmltest.u-ga.fr/item/CM_1937__4__276_0/