1. Guven IA, Ağaoğlu I (2014) Properties of Bertrand curves in dual space. Int J Phys Sci 9(9):208–213.
https://doi.org/10.5897/IJPS2013.4067
2. Tuncer Y, Ünal S (2012) New representations of Bertrand pairs in Euclidean 3-space. Appl Math Comput 219(4):1833–1842
3. Barrios IM.
http://www.mai.liu.se/~ miizq/kurser/NMAC21/exer20071.pdf
4. Do Carmo MP (1976) Differential geometry of curves and surfaces. Prentice-Hall, Englewood Cliffs, NJ
5. Kühnel W (2006) Differential geometry of curves-surfaces-manifolds, 2nd edn. AMS, Providence