4REINOSO J F. MOMCAYO M, PASADAS M, et al. The Frenet frame beyond classical differential geometry: Application to cartographic generalization of roads [ J ]. Mathematics and Computers in Simulation, 2009, 79( 12): 3556-3566.
5KULAt-ICI M, BEKTAS M, ERGUT M. On harmonic curvatures of a Frenet curve in Lorentzian space [J]. Chaos, Solitons and Fractals, 2009, 41(4): 1668-1675.
6ENCHEVA R P, GEORGIEV G H. Similar frenet curves [J]. Results in Mathematics, 2009(55) : 359-372.
