BIBCYT http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno Herlea Damian, Daniela E. P Principal Eberlein, Armin P Principal Shaw, Mildred L.G. mildred@cpsc.ucalgary.ca P Principal Gaines, Brian R. gaines@cpsc.ucalgary.ca P Principal Using Different Communication Media in Requirements Negotiation 17 pp. 28-36