@article{05345491, title = {Timelike quaternion frame of a non-lightlike curve.}, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {49}, year = {2008}, pages = {325-333}, zbl = {1158.53012}, language = {en}, url = {http://dml.mathdoc.fr/item/05345491} }
Özdemir, M.; Ergin, A.A. Timelike quaternion frame of a non-lightlike curve.. Beiträge zur Algebra und Geometrie, Tome 49 (2008) pp. 325-333. http://gdmltest.u-ga.fr/item/05345491/