@article{1200688283,
author = {Homma, Tatsuo},
title = {On the existence of unknotted polygons on 2-manifolds in $E\sp 3$},
journal = {Osaka Math. J.},
volume = {6},
number = {1},
year = {1954},
pages = { 129-134},
language = {en},
url = {http://dml.mathdoc.fr/item/1200688283}
}
Homma, Tatsuo. On the existence of unknotted polygons on 2-manifolds in $E\sp 3$. Osaka Math. J., Tome 6 (1954) no. 1, pp. 129-134. http://gdmltest.u-ga.fr/item/1200688283/