Marc Bailly-Bechet Alfredo Braunstein Riccardo Zecchina A Prize-Collecting Steiner Tree Approach for Transduction Network Inference. 83-95 2009 CMSB http://dx.doi.org/10.1007/978-3-642-03845-7_6 conf/cmsb/2009 db/conf/cmsb/cmsb2009.html#Bailly-BechetBZ09