Michael J. S. Dewar, Donald H. Lo: Ground states of .sigma.-bonded molecules. XIV. Application of energy partitioning to the MINDO [modified intermediate neglect of differential overlap] /2 method and a study of the Cope rearrangement. In: Journal of the American Chemical Society. Band93, Nr.26, 1971, S.7201–7207, doi:10.1021/ja00755a014.
Fritz Vögtle, Ernst Goldschmitt: [3.3]-Sigmatrope Reaktionen im N,N′-Dimethylen-äthylendiamin-System. In: Angewandte Chemie. Band85, Nr.18, 1973, S.824–826, doi:10.1002/ange.19730851813.
Fritz Vögtle, Ernst Goldschmitt: Dynamische Stereochemie der entarteten Diaza-Cope-Umlagerung. In: Angewandte Chemie. Band86, Nr.14, 1974, S.520–521, doi:10.1002/ange.19740861408.