Evan E. Bolton; Yanli Wang; Paul A. Thiessen; Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry. 4: 217—241. doi:10.1016/S1574-1400(08)00012-1.
Gribble G. W. (2000). „Recent developments in indole ring synthesis—methodology and applications”. J. Chem. Soc. Perkin Trans. 1 (7): 1045. doi:10.1039/a909834h.
Cacchi, S.; Fabrizi, G. (2005). „Synthesis and Functionalization of Indoles Through Palladium-catalyzed Reactions”. Chem. Rev. 105 (7): 2873. PMID16011327. doi:10.1021/cr040639b.
Humphrey, G. R.; Kuethe, J. T. (2006). „Practical Methodologies for the Synthesis of Indoles”. Chem. Rev. 106 (7): 2875. PMID16836303. doi:10.1021/cr0505270.
Gerd Collin and Hartmut Höke “Indole” Ullmann's Encyclopedia of Industrial Chemistry 2002, . Weinheim: Wiley-VCH. doi:10.1002/14356007.a14_167.Недостаје или је празан параметар |title= (помоћ).
Cacchi, S.; Fabrizi, G. (2005). „Synthesis and Functionalization of Indoles Through Palladium-catalyzed Reactions”. Chem. Rev. 105 (7): 2873. PMID16011327. doi:10.1021/cr040639b.
Humphrey, G. R.; Kuethe, J. T. (2006). „Practical Methodologies for the Synthesis of Indoles”. Chem. Rev. 106 (7): 2875. PMID16836303. doi:10.1021/cr0505270.