BIBCYT http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno Chulani, Sunita P Principal Santhanam, P. P Principal Hodges, Brent P Principal Blacksten Anders, Kelley P Principal Metrics-Based Management of Software Product Portfolios Vol: 24 pp. 66-72