Stefik, M., Bobrow, D.G., and Kahn, K. "Integrating access-oriented programming into a multiparadigm environment"

Richer, M.H. (1986) Richer, M.H. (ed.) AI Tools and Techniques, Ablex Publishing Corporation, Norwood, New Jersey.   D.G. Bobrow

Languages mentioned LOOPS {1983} Lisp Object-Oriented Programming System