@article{RO_2001__35_4_383_0,
     author = {Fampa, Marcia and Maculan, Nelson},
     title = {A new relaxation in conic form for the euclidean {Steiner} problem in $\Re ^n$},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {383--394},
     publisher = {EDP-Sciences},
     volume = {35},
     number = {4},
     year = {2001},
     mrnumber = {1896578},
     zbl = {1020.90042},
     language = {en},
     url = {http://archive.numdam.org/item/RO_2001__35_4_383_0/}
}