@article{ELMA_1970__25_140976,
     author = {J.E. Wetzel},
     title = {Triangular {Covers} for {Closed} {Curves} of {Constant} {Length.}},
     journal = {Elemente der Mathematik},
     pages = {78--82},
     publisher = {mathdoc},
     volume = {25},
     year = {1970},
     zbl = {0199.57201},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1970__25_140976/}
}