Investigating the Validity of a Test Case Selection Methodology for Expert System Validation. - Jan-Eike Michels; Thomas Abel; Rainer Knauf; Avelino J. Gonzalez (FLAIRS, 1998)

A framework for validation of rule-based systems. - Rainer Knauf; Avelino J. Gonzalez; Thomas Abel (IEEE Trans. Syst. Man Cybern. Part B, 2002)

Culture in cycles: considering H.T. Odum's 'information cycle'. - Thomas Abel (Int. J. Gen. Syst., 2014)

Building with/on Howard T. Odum's theory of information. - Thomas Abel (Int. J. Gen. Syst., 2023)