roughly a century before Cardan grilles were devised The mathematical concept of randomness was not yet fully formed in the time period proposed The debate continues. Selected publications Petre, Marian, and Gordon Rugg. The unwritten rules of PhD research. McGraw-Hill International, 2010. Articles, a selection: Maiden, N. A. M., and Gordon Rugg. "ACRE: selecting methods for requirements acquisition." Software Engineering Journal 11.3 (1996): 183-192. Rugg, Gordon, and Peter McGeorge. "The sorting techniques: a tutorial paper on card sorts, picture sorts and item sorts." Expert Systems 14.2 (1997): 80-93. Rugg, Gordon. "The mystery of the Voynich Manuscript: New analysis of a famously cryptic medieval document suggests that it contains nothing but gibberish." Scientific American 291.1 (2004): 104109. References External links Personal website at Keele University BBC Staffordshire Feature on the Voynich Manuscript Das Geheimnis des mysteriösen Voynich-Codes at Wissenschaft.de What are Neal keys at www.voynich.net 1955 births Living people Writers from Perth, Scotland British scientists Alumni of the University of Reading Academics of Keele University Codicologists