%0 Journal Article %T Duke's Theorem for subcollections %A Menny Aka %A Manfred Einsiedler %J Mathematics %D 2014 %I arXiv %R 10.1017/etds.2014.68 %X We combine effective mixing and Duke's Theorem on closed geodesics on the modular surface to show that certain subcollections of the collection of geodesics with a given discriminant still equidistribute. These subcollections are only assumed to have sufficiently large total length without any further restrictions. %U http://arxiv.org/abs/1403.2016v2