A polymorphic L1 retroposon insertion in the centromere of the human Y chromosome.

Santos FR, Pandaya, A., Kayser, M., Mitchell, R.J., Liu, A., Singh, L., Destro-Bisol, G., Novelletto, A., Qamar, R., Mehdi, S.Q., Adhikari, R., Clegg, J., de Knijff P. and Tyler-Smith, C.  

Human Mol. Genetics, 9(3) 421-430 (2000).