Thalbitzer, William. “Erland Nordenskiöld: Deductions Suggested by the Geographical Distribution of Some Post- Columbian Words Used by the Indians of S. America — Comparative Ethnographical Studies, No. 5. (Göteborg 1922): S. L— 176”. Geografisk Tidsskrift, bd. 27, januar 1924, https://tidsskrift.dk/geografisktidsskrift/article/view/47329.