Burkhardt E, Adham IM, Brosig B, Gastmann A, Mattei MG, Engel W (March 1994). "Structural organization of the porcine and human genes coding for a Leydig cell-specific insulin-like peptide (LEY I-L) and chromosomal localization of the human gene (INSL3)". Genomics. 20 (1): 13–9. doi:10.1006/geno.1994.1121. PMID8020942.
Richard FJ (March 2007). "Regulation of meiotic maturation". Journal of Animal Science. 85 (13 Suppl): E4-6. doi:10.2527/jas.2006-475. PMID17040950.
Burkhardt E, Adham IM, Brosig B, Gastmann A, Mattei MG, Engel W (March 1994). "Structural organization of the porcine and human genes coding for a Leydig cell-specific insulin-like peptide (LEY I-L) and chromosomal localization of the human gene (INSL3)". Genomics. 20 (1): 13–9. doi:10.1006/geno.1994.1121. PMID8020942.
Richard FJ (March 2007). "Regulation of meiotic maturation". Journal of Animal Science. 85 (13 Suppl): E4-6. doi:10.2527/jas.2006-475. PMID17040950.