Ioffe
Zhurnal Obshchei Khimii, 1933 , vol. 3, p. 524,526
Chem. Zentralbl., 1935 , vol. 106, # I p. 391
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Braude et al.
Journal of the Chemical Society, 1954 , p. 1049,1056
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Clar,E.
Polycyclic Hydrocarbons, Bd. 2