The Effect of Constraint Notification within a Case Tool Environment of Design Productivity and Quality. - D. Ross Jeffery; Fredrik Utbult; Kevin Chung; Sabine Bruynincx (PROFES, 2000)

Early Lifecycle Work: Influence of Individual Characteristics, Methodological Constraints, and Interface Constraints. - Andrew Brooks; Fredrik Utbult; Catherine Mulligan; D. Ross Jeffery (Empir. Softw. Eng., 2000)