↑Dalbiès-Tran R, Papillier P, Pennetier S, Uzbekova S, Monget P (August 2005). "Bovine mater-like NALP9 is an oocyte marker gene". Mol. Reprod. Dev. 71 (4): 414–21. doi:10.1002/mrd.20298. PMID15892040.
↑Ponsuksili S, Brunner RM, Goldammer T, et al. (March 2006). "Bovine NALP5, NALP8, and NALP9 genes: assignment to a QTL region and the expression in adult tissues, oocytes, and preimplantation embryos". Biol. Reprod. 74 (3): 577–84. doi:10.1095/biolreprod.105.045096. PMID16339045.
Tschopp J, Martinon F, Burns K (2003). "NALPs: a novel protein family involved in inflammation". Nat. Rev. Mol. Cell Biol. 4 (2): 95–104. doi:10.1038/nrm1019. PMID12563287.