Layered specifications to support reusability and integrability. - Roland T. Mittermeir; Evelin Kofler (J. Syst. Integr., 1993)

Balancing in reverse engineering and in object-oriented systems engineering to improve reusability and maintainability. - Harald C. Gall; René Klösch; Evelin Kofler; Lydia Würfl (COMPSAC, 1994)