@article{Hector_1983,
title={All open surfaces are leaves of simple foliations of R3},
volume={86},
ISSN={1385-7258},
url={http://dx.doi.org/10.1016/s1385-7258(83)80021-3},
DOI={10.1016/s1385-7258(83)80021-3},
number={4},
journal={Indagationes Mathematicae (Proceedings)},
publisher={Elsevier BV},
author={Hector,
Gilbert and Bouma,
Wiet},
year={1983},
month=dec,
pages={443–452} }