Sharma, S; Rai, E; Sharma, P; Jena, M; Singh, S; Darvishi, K; Bhat, AK; Bhanwer, AJ et al. (2009). "The Indian origin of paternal haplogroup R1a1(*)substantiates the autochthonous origin of Brahmins and the caste system". Journal of Human Genetics 54 (1): 47–55. doi:10.1038/jhg.2008.2. PMID19158816.
Balanovsky O, Rootsi S, Pshenichnov A, Kivisild T, Churnosov M, Evseeva I et al. (2008). "Two sources of the Russian patrilineal heritage in their Eurasian context". Am. J. Hum. Genet. 82 (1): 236–50. doi:10.1016/j.ajhg.2007.09.019. PMC 2253976. PMID18179905.
Tambets K, Rootsi S, Kivisild T, Help H, Serk P, Loogväli EL et al. (2004). "The western and eastern roots of the Saami--the story of genetic "outliers" told by mitochondrial DNA and Y chromosomes". Am. J. Hum. Genet. 74 (4): 661–82. doi:10.1086/383203. PMC 1181943. PMID15024688.
Haber, Marc; Platt, DE; Ashrafian Bonab, M; Youhanna, SC; Soria-Hernanz, DF; Martínez-Cruz, Begoña; Douaihy, Bouchra; Ghassibe-Sabbagh, Michella; Rafatpanah, Hoshang; Ghanbari, Mohsen; Whale, John; Balanovsky, Oleg; Wells, R. Spencer; Comas, David; Tyler-Smith, Chris; Zalloua, Pierre A. et al. (2012). "Afghanistan's Ethnic Groups Share a Y-Chromosomal Heritage Structured by Historical Events". PLoS ONE 7 (3): e34288. Bibcode:2012PLoSO...734288H. doi:10.1371/journal.pone.0034288. PMC 3314501. PMID22470552.
