On designing connected rapid transit networks reducing the number of transfers Egileak: L.F. Escudero, S. Muñoz Urtea: 2011 Aldizkaria: RAIRO – Operations Research Informazio gehigarria http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8477745&fulltextType=RA&fileId=S0399055911001168