Buu-Hoi; Lavit
Croatica Chemica Acta, 1957 , vol. 29, p. 287,289
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Haworth; Sheldrick
Journal of the Chemical Society, 1934 , p. 864,866
Schultz
Die Chemie des Steinkohlenteers, 3. Aufl., Bd. II <Braunschweig 1901>, S. 276
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Collin
Bull. Soc. ind. Mulhouse, 1896 , vol. 66, p. Resume des seances et procesverbaux, S. 117