@article{articlef7710031,
title   = {Fast heuristics for the Steiner tree problem with revenues, budget and hop constraints},
author = {Costa, Alysson Machado and Cordeau, Jean-François and Laporte, Gilbert},
year = {2008},
doi = {10.1016/j.ejor.2007.06.012},
journal   = {European Journal of Operational Research}
}