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2 matching references were found.
Rettig, W.; Wirz, J., 111. Electronic structure and photophysical properties of isoindole and its benzo[f]-and dibenzo[e,g]-derivatives, Helv. Chim. Acta, 1976, 59, 1054. [all data]
Rettig, W., et al., Spectrochim. Acta, 1984, 40A, 241. [all data]