@inproceedings{inproceedings822c1f0f,
title   = {PTAS’s for some metric p-source communication spanning tree problems},
author = {Ravelo, Santiago Valdés and Ferreira, Carlos Eduardo},
year = {2015},
doi = {10.1007/978-3-319-15612-5_13},
publisher = {Springer},
booktitle   = {International Workshop on Algorithms and Computation - WALCOM}
}