Algorithmic Aspects of Steiner Convexity and Enumeration of Steiner Trees. Dourado, M. C.; Oliveira, R. A.; and Protti, F. Annals of Operations Research, 223(1):155--171, May, 2014.
Algorithmic Aspects of Steiner Convexity and Enumeration of Steiner Trees [link]Paper  doi  bibtex   
@article{ Dourado2014,
  author = {Dourado, Mitre C. and Oliveira, Rodolfo A. and Protti, F́{a}bio},
  doi = {10.1007/s10479-014-1607-5},
  file = {:Users/KunihiroWASA/Dropbox/paper/2014/Dourado, Oliveira, Protti, Algorithmic Aspects of Steiner Convexity and Enumeration of Steiner Trees, 2014.pdf:pdf},
  issn = {0254-5330},
  journal = {Annals of Operations Research},
  month = {May},
  number = {1},
  pages = {155--171},
  title = {{Algorithmic Aspects of Steiner Convexity and Enumeration of Steiner Trees}},
  url = {http://link.springer.com/10.1007/s10479-014-1607-5},
  volume = {223},
  year = {2014}
}
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