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Excited States in Organic Chemistry and Biochemistry
Jakob Wirz The Jerusalem Symposia on Quantum Chemistry and Biochemistry, Excited States in Organic Chemistry and Biochemistry 10 283 (1977) https://doi.org/10.1007/978-94-010-1273-7_24
Valence shell calculations of the structure and spectroscopic properties of 3,4-dimethylenecyclobutene