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German Dyestuffs and Dyestuff Intermediates
Fiat Final Report Nr. 1313, Bd. II <London 1948>, S. 215
Friedlaender; Schick
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Bayer and Co.
Patent: DE91150 ;
Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 4, p. 316