On rectifying slant helices in Euclidean 3-space
  In this paper, we study the position vectors of rectifying slant helices in $E^3$. First, we have found the general equations of the curvature and the torsion of rectifying slant helices. After that, we have constructed a second order linear differential equation and by solving the equation, we have obtained a family of rectifying slant helices which lie on cones. 
B\"ulent Altunkaya, Ferda\u{g} Kahraman Aksoyak, Levent Kula, Cahit   Aytekin
math.GM