@article{GDZPPN002181363,
title = {Arcs of vanishing metric curvature.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {218},
year = {1965},
pages = {214-220},
zbl = {0129.14505},
url = {http://dml.mathdoc.fr/item/GDZPPN002181363}
}
Kelly, LeRoy M.; Kay, David C. Arcs of vanishing metric curvature.. Journal für die reine und angewandte Mathematik, Tome 218 (1965) pp. 214-220. http://gdmltest.u-ga.fr/item/GDZPPN002181363/