%0 Journal Article %T Ruled surface pair generated by a curve and its natural lift in R^3 %A E. Ergun %A M. Caliskan %J Pure Mathematical Sciences %D 2012 %I %U http://www.m-hikari.com/pms/pms-2012/pms-1-4-2012/caliskanPMS1-4-2012-1.pdf