FERREIRA LEITES, Graciela; NESMACHNOW, Sergio; ROBLEDO, Franco. A formulation for a Hop Constrained Survivable Network Design Problem. Yugoslav Journal of Operations Research, [S.l.], apr. 2017. ISSN 2334-6043. Available at: <http://yujor.fon.bg.ac.rs/index.php/yujor/article/view/139>. Date accessed: 25 sep. 2017.