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Messmer, Richard P.; Schultz, Peter A. (1987). "The electronic structure of the benzene molecule". Nature329 (6139): 492. doi:10.1038/329492a0. Bibcode: 1987Natur.329..492M.
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Cooper, David L.; Gerratt, Joseph; Raimondi, Mario (1986). "The electronic structure of the benzene molecule". Nature323 (6090): 699. doi:10.1038/323699a0. Bibcode: 1986Natur.323..699C.
Messmer, Richard P.; Schultz, Peter A. (1987). "The electronic structure of the benzene molecule". Nature329 (6139): 492. doi:10.1038/329492a0. Bibcode: 1987Natur.329..492M.
Harcourt, Richard D. (1987). "The electronic structure of the benzene molecule". Nature329 (6139): 491. doi:10.1038/329491b0. Bibcode: 1987Natur.329..491H.