DuH92'

BibTeX

@article{DBLP:journals/algorithmica/DuH92,
  author    = {Ding-Zhu Du and
               Frank K. Hwang},
  title     = {A Proof of the Gilbert-Pollak Conjecture on the Steiner
               Ratio},
  journal   = {Algorithmica},
  volume    = {7},
  number    = {2{\&}3},
  year      = {1992},
  pages     = {121-135},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}