Jobling MA, Williams GA, Schiebel GA, Pandya GA, McElreavey GA, Salas GA, Rappold GA, Affara NA, Tyler-Smith C. A selective difference between human Y-chromosomal DNA haplotypes. Curr Biol. 1998 Dec;8(25):1391–4. doi: 10.1016/s0960-9822(98)00020-7. PMID: 9889101.