Uhlenbrock K, Gassenhuber H, Kostenis E (November 2002). „Sphingosine 1-phosphate is a ligand of the human gpr3, gpr6 and gpr12 family of constitutively active G protein-coupled receptors”. Cell. Signal.14 (11): 941–53. DOI:10.1016/S0898-6568(02)00041-4. PMID12220620.
Hinckley M, Vaccari S, Horner K, Chen R, Conti M (November 2005). „The G-protein-coupled receptors GPR3 and GPR12 are involved in cAMP signaling and maintenance of meiotic arrest in rodent oocytes”. Dev. Biol.287 (2): 249–61. DOI:10.1016/j.ydbio.2005.08.019. PMID16229830.
Uhlenbrock K, Gassenhuber H, Kostenis E (November 2002). „Sphingosine 1-phosphate is a ligand of the human gpr3, gpr6 and gpr12 family of constitutively active G protein-coupled receptors”. Cell. Signal.14 (11): 941–53. DOI:10.1016/S0898-6568(02)00041-4. PMID12220620.
Hinckley M, Vaccari S, Horner K, Chen R, Conti M (November 2005). „The G-protein-coupled receptors GPR3 and GPR12 are involved in cAMP signaling and maintenance of meiotic arrest in rodent oocytes”. Dev. Biol.287 (2): 249–61. DOI:10.1016/j.ydbio.2005.08.019. PMID16229830.