W. Royce

RADC (Rome Air Development Center) System/Software Requirements Engineering Testbed Research and Development Program

C. V. Ramamoorthy, M. Konrad, R. Balzer, 1988 .

Employing UNAS technology for software architecture education at the University of Southern California

W. Royce, B. Boehm, C. Druffel, 1994, WADAS '94.