Julio Cesar Sampaio do Prado Leite Gustavo Rossi Federico Balaguer Vanesa Maiorana Gladys N. Kaplan Graciela D. S. Hadad Alejandro Oliveros Enhancing a Requirements Baseline with Scenarios. 44-53 1997 conf/re/1997 RE http://computer.org/proceedings/re/7740/77400044abs.htm db/conf/re/re1997.html#LeiteRBMKHO97a