@TECHREPORT{greg:derived-edges,
AUTHOR = "Greg Sullivan and Karl Lieberherr",
TITLE = "An Object-oriented Design Methodology",
INSTITUTION = "Northeastern University",
YEAR = 1995,
MONTH = "January",
NUMBER = "NU-CCS-95-1",
NOTE = "Was completed in December 1992"
}

Feedback is appreciated.

Paper (in several formats).