ISBN 978-953-150-840-7 (克罗地亚语). Donald A. Ringe. From Proto-Indo-European to Proto-Germanic. Oxford University Press. 2006. ISBN 9780199284139. Kapović, Mate. Uvod
and Polish homeland the Slavs were intermixed and at times overlain by Germanic speakers (the Goths) and by Iranian speakers (Scythians, Sarmatians, Alans)
Bulsara: The Laws of the Ancient Persians as found in the "Matikan E Hazar Datastan" or "The Digest of a Thousand Points of Law", 1999 M. N. Dhalla: Zoroastrian