Stefan Hougardy, Hans Jürgen Prömel. A 1.598 Approximation Algorithm for the Steiner Problem in Graphs. In SODA. pages 448-453, 1999. [doi]
@inproceedings{HougardyP99,
title = {A 1.598 Approximation Algorithm for the Steiner Problem in Graphs},
author = {Stefan Hougardy and Hans Jürgen Prömel},
year = {1999},
doi = {10.1145/314500.314599},
url = {http://doi.acm.org/10.1145/314500.314599},
tags = {graph-rewriting, rewriting},
researchr = {https://researchr.org/publication/HougardyP99},
cites = {0},
citedby = {0},
pages = {448-453},
booktitle = {SODA},
}