@article{01702478,
title = {Torsion, curvature and deflection },
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {6},
year = {2001},
pages = {29-44},
zbl = {0999.53024},
language = {en},
url = {http://dml.mathdoc.fr/item/01702478}
}
Neagu, Mircea; Udrişte, Constantin. Torsion, curvature and deflection . Balkan Journal of Geometry and its Applications (BJGA), Tome 6 (2001) pp. 29-44. http://gdmltest.u-ga.fr/item/01702478/