Lubotsky, Alexander, (2020). "What language was spoken by the people of the Bactria-Margiana Archaeological Complex?" 28 Ocak 2021 tarihinde Wayback Machine sitesinde arşivlendi., in Paul W. Kroll and Jonathan A. Silk (eds.), 'At the Shores of the Sky': Asian Studies for Albert Hoffstädt, Brill, Leiden/Boston, p. 6: "...The breakdown of the Indo-Iranian branch into Indian and Iranian occurred somewhere between 2000 and 1600 bce, when future Indians left their tribesmen and crossed the Hindu Kush on their way to India..."
web.archive.org
Lubotsky, Alexander, (2020). "What language was spoken by the people of the Bactria-Margiana Archaeological Complex?" 28 Ocak 2021 tarihinde Wayback Machine sitesinde arşivlendi., in Paul W. Kroll and Jonathan A. Silk (eds.), 'At the Shores of the Sky': Asian Studies for Albert Hoffstädt, Brill, Leiden/Boston, p. 6: "...The breakdown of the Indo-Iranian branch into Indian and Iranian occurred somewhere between 2000 and 1600 bce, when future Indians left their tribesmen and crossed the Hindu Kush on their way to India..."
