Moldenhauer, Carsten2011-11-102011-11-102011-11-10201110.1007/978-3-642-22006-7_63https://infoscience.epfl.ch/handle/20.500.14299/72407Primal-Dual Approximation Algorithms for Node-Weighted Steiner Forest on Planar Graphstext::conference output::conference proceedings::conference paper