The Proto-Indoaryans T Burrow (1973), Journal of the Royal Asiatic Society of Great Britain & Ireland, Vol. 105, Issue 2, pages 123-140 (on roots of Devas and Asuras in Indo-Iranian versus Indo-European history)
Indo-European Deities and the Rigvedaآرکائیو شدہ(Date missing) بذریعہ w.omilosmeleton.gr (Error: unknown archive URL) ND Kazanas (2001), The Journal of Indo-European Studies, Vol. 29, No. 3 & 4
The Vedic Gods of Japan S Kak (2004), Brahmavidyā: The Adyar Library Bulletin (on the spread of Vedic Devas such as Indra, Agni, Vayu outside India)