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Sironen A، Vilkki J، Bendixen C، Thomsen B (أكتوبر 2007). "Infertile Finnish Yorkshire boars carry a full-length LINE-1 retrotransposon within the KPL2 gene". Molecular Genetics and Genomics. ج.278 ع.4: 385–91. DOI:10.1007/s00438-007-0256-7. PMID:17610085.
Nagase T، Kikuno R، Hattori A، Kondo Y، Okumura K، Ohara O (ديسمبر 2000). "Prediction of the coding sequences of unidentified human genes. XIX. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro". DNA Research. ج.7 ع.6: 347–55. DOI:10.1093/dnares/7.6.347. PMID:11214970.
Sironen A، Hansen J، Thomsen B، Andersson M، Vilkki J، Toppari J، Kotaja N (مارس 2010). "Expression of SPEF2 during mouse spermatogenesis and identification of IFT20 as an interacting protein". Biology of Reproduction. ج.82 ع.3: 580–90. DOI:10.1095/biolreprod.108.074971. PMID:19889948.
Sironen A، Vilkki J، Bendixen C، Thomsen B (أكتوبر 2007). "Infertile Finnish Yorkshire boars carry a full-length LINE-1 retrotransposon within the KPL2 gene". Molecular Genetics and Genomics. ج.278 ع.4: 385–91. DOI:10.1007/s00438-007-0256-7. PMID:17610085.
Nagase T، Kikuno R، Hattori A، Kondo Y، Okumura K، Ohara O (ديسمبر 2000). "Prediction of the coding sequences of unidentified human genes. XIX. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro". DNA Research. ج.7 ع.6: 347–55. DOI:10.1093/dnares/7.6.347. PMID:11214970.