Menor-Salván C, Ruiz-Bermejo DM, Guzmán MI, Osuna-Esteban S, Veintemillas-Verdaguer S (2007). «Synthesis of pyrimidines and triazines in ice: implications for the prebiotic chemistry of nucleobases». Chemistry. 15 (17): 4411–8. PMID19288488. doi:10.1002/chem.200802656
Menor-Salván C, Ruiz-Bermejo DM, Guzmán MI, Osuna-Esteban S, Veintemillas-Verdaguer S (2007). «Synthesis of pyrimidines and triazines in ice: implications for the prebiotic chemistry of nucleobases». Chemistry. 15 (17): 4411–8. PMID19288488. doi:10.1002/chem.200802656