Programming measurement and estimation in the software engineering laboratory. - Victor R. Basili; Karl Freburger (J. Syst. Softw., 1981)

RAPID: Prototyping Control Panel Interfaces. - Karl Freburger (OOPSLA, 1987)

Processes and metrics for object-oriented software development. - Steven Craig Bilow; Doug Lea; Karl Freburger; Dennis de Champeaux (OOPSLA Addendum, 1993)