Bell-Fialkoff 2000, p. 136. Bell-Fialkoff, Andrew, ed. (2000). "The Slavs". The Role of Migration in the History of the Eurasian Steppe: Sedentary Civilization vs. 'Barbarian' and Nomad. Palgrave Macmillan US. pp. 136–. ISBN978-1-349-61837-8.
Bell-Fialkoff 2000, p. 136, Gimbutas 1971, p. 60 Bell-Fialkoff, Andrew, ed. (2000). "The Slavs". The Role of Migration in the History of the Eurasian Steppe: Sedentary Civilization vs. 'Barbarian' and Nomad. Palgrave Macmillan US. pp. 136–. ISBN978-1-349-61837-8. Gimbutas, Marija (1971). The Slavs. London: Thames and Hudson. p. 60.
Bell-Fialkoff 2000, p. 136; P. S. Sakac, Iranische Herkunft des kroatischen Volksnamens, Orient. Christ. Per. XV, 1949, 313-340 Bell-Fialkoff, Andrew, ed. (2000). "The Slavs". The Role of Migration in the History of the Eurasian Steppe: Sedentary Civilization vs. 'Barbarian' and Nomad. Palgrave Macmillan US. pp. 136–. ISBN978-1-349-61837-8.
Constantine VII Porphyrogenitus (1949). Gy. Moravcsik (ed.). De administrando imperio. Translated by R.J.H. Jenkins. Pázmány Péter Tudományegyetemi Görög Filoĺ́ogiai Intézet. p. 115.