Nachshon Cohen, Zeev Nutov. Approximating Steiner Trees and Forests with Minimum Number of Steiner Points. In Evripidis Bampis, Ola Svensson, editors, Approximation and Online Algorithms - 12th International Workshop, WAOA 2014, Wrocław, Poland, September 11-12, 2014, Revised Selected Papers. Volume 8952 of Lecture Notes in Computer Science, pages 95-106, Springer, 2014. [doi]
Abstract is missing.