1,2-二氢苊Wiley-VCH, 2005, doi:10.1002/14356007.a13_227 K. Hunger. W. Herbst "Pigments, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH,
氯苯Michael. Phenol. Wiley-VCH Verlag GmbH & Co. KGaA (编). Ullmann's Encyclopedia of Industrial Chemistry. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co.
环嗪酮"Weed Control" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. doi:10.1002/14356007.a28_165 Hexazinone (页面存档备份,存于互联网档案馆),
环戊酮Aliphatic Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2015, Wiley-VCH, Weinheim.doi:10.1002/14356007.t11_t01 Hardo Siegel, Manfred Eggersdorfer
萘磺酸盐Derivatives, Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, 2005, doi:10.1002/14356007.a17_009 Collin, Gerd; Höke, Hartmut; Greim