C13Shift: a computer program for the prediction of carbon-13 NMR spectra based on an open set of additivity rules. - Ernö Pretsch; Andras Furst; Martin Badertscher; Renate Buergin; Morton E. Munk (J. Chem. Inf. Comput. Sci., 1992)

A Novel Formalism To Characterize the Degree of Unsaturation of Organic Molecules. - Martin Badertscher; Kaspar Bischofberger; Morton E. Munk; Ernö Pretsch (J. Chem. Inf. Comput. Sci., 2001)