Luis Gouveia, Markus Leitner, Ivana Ljubic. Hop constrained Steiner trees with multiple root nodes. European Journal of Operational Research, 236(1):100-112, 2014. [doi]
@article{GouveiaLL14,
title = {Hop constrained Steiner trees with multiple root nodes},
author = {Luis Gouveia and Markus Leitner and Ivana Ljubic},
year = {2014},
doi = {10.1016/j.ejor.2013.11.029},
url = {http://dx.doi.org/10.1016/j.ejor.2013.11.029},
researchr = {https://researchr.org/publication/GouveiaLL14},
cites = {0},
citedby = {0},
journal = {European Journal of Operational Research},
volume = {236},
number = {1},
pages = {100-112},
}