@article{GDZPPN002077329, title = {Triangular Covers for Closed Curves of Constant Length.}, journal = {Elemente der Mathematik}, volume = {25}, year = {1970}, pages = {78-82}, zbl = {0199.57201}, url = {http://dml.mathdoc.fr/item/GDZPPN002077329} }
Wetzel, J.E. Triangular Covers for Closed Curves of Constant Length.. Elemente der Mathematik, Tome 25 (1970) pp. 78-82. http://gdmltest.u-ga.fr/item/GDZPPN002077329/