ESEC '91 3rd European Software Engineering Conference, ESEC '91, Milan, Italy, October 21-24, 1991 : proceedings
European Software Engineering Conference (3rd 1991 Milan, Italy) A. van Lamsweerde (Axel); A Fuggetta 1958- (Alfonso)
Berlin Springer-Verlag New York c1991
Available at ICMC - Inst. Ciên. Mat. Computação (68-02 LNCS v.550 e.1 ) and other locations(GetIt)