Regarding the Erdosy article Erdosy, George . "Ethnicity in the Rigveda and its Bearing on the Question of Indo-European Origins." South Asian Studies. 5 (1989): 35-47. I have a copy in front of me right now. Journal of the Society of South Asian Studies (red volume), c/o The British Academy, London. Julia Leslie Dr I J Leslie Department of the Study of Religions SOAS