Dobroruka, Vicente. “Ibn Fadlan and a By-Passed Remark on an Imaginary Geographical Topos: Some Observations on the Decreasing Factual Credibility Regarding the Caucasus Area of the Silk Road”. Esboços: Histórias Em Contextos Globais, vol. 27, nº 44, fevereiro de 2020, p. 38-58, doi:10.5007/2175-7976.2020.e66883.