%% -*-BibTeX-*- @TechReport{BePiRi03, author = "A. A. Bertossi and M. C. Pinotti and R. Rizzi", title = "Channel Assignment with Separation on Trees and Interval Graphs", number = "DIT-02-0075", institution = "Dipartimento di Informatica e Telecomunicazioni, Universit\`{a} di Trento", address = "Trento, Italy", year = "2002", URL = "http://rtm.science.unitn.it/~realwine/", language = "English", }