S. R. Smith Constructing and Revising Formal Arguments in Requirements Engineering. [Citation Graph (0, 0)][DBLP] Requir. Eng., 1997, v:2, n:4, pp:199-216 [Journal]
D. Corral Requirements Engineering Needs Total Systems Engineering. [Citation Graph (0, 0)][DBLP] Requir. Eng., 1997, v:2, n:4, pp:217-219 [Journal]