@article{articlea5433c9d,
title   = {Algorithms for terminal Steiner trees},
author = {Martinez, Fábio Viduani and Pina Júnior, José Coelho de and Soares, Jose Augusto Ramos},
year = {2007},
doi = {10.1016/j.tcs.2007.08.001},
journal   = {Theoretical Computer Science}
}