A Lisp System for Evaluating Garbage Collector Performance. - Jack David Katzberg (SIGMETRICS, 1988)

Variable Precision Rough Sets with Asymmetric Bounds. - Jack David Katzberg; Wojciech Ziarko (RSKD, 1993)

Variable Precision Rough Sets Approach to Predicting Factors Affecting Delay Likelihoods. - Jack David Katzberg; Pauline Katzberg; Wojciech Ziarko (IEA/AIE, 1995)

Variable Precision Extension of Rough Sets. - Jack David Katzberg; Wojciech Ziarko (Fundam. Informaticae, 1996)