Zingoni A, Rocchi M, Storlazzi CT, Bernardini G, Santoni A, Napolitano M (1997). „Isolation and chromosomal localization of GPR31, a human gene encoding a putative G protein-coupled receptor”. Genomics. 42 (3): 519—23. PMID9205127. doi:10.1006/geno.1997.4754.
Zingoni A, Rocchi M, Storlazzi CT, Bernardini G, Santoni A, Napolitano M (1997). „Isolation and chromosomal localization of GPR31, a human gene encoding a putative G protein-coupled receptor”. Genomics. 42 (3): 519—23. PMID9205127. doi:10.1006/geno.1997.4754.