Ferruccio Barsi Alfredo Navarra Maria Cristina Pinotti Cheapest Paths in Multi-interface Networks. 37-42 2009 ICDCN http://dx.doi.org/10.1007/978-3-540-92295-7_7 conf/icdcn/2009 db/conf/icdcn/icdcn2009.html#BarsiNP09