@article{GDZPPN002401495,
title = {Vector Fields on Low Dimensional Manifolds.},
journal = {Mathematische Zeitschrift},
volume = {105},
year = {1968},
pages = {85-93},
zbl = {0162.55403},
url = {http://dml.mathdoc.fr/item/GDZPPN002401495}
}
Thomas, Emery. Vector Fields on Low Dimensional Manifolds.. Mathematische Zeitschrift, Tome 105 (1968) pp. 85-93. http://gdmltest.u-ga.fr/item/GDZPPN002401495/