Jenny A, Minvielle-Sebastia L, Preker PJ, Keller W (Dec 1996). "Sequence similarity between the 73-kilodalton protein of mammalian CPSF and a subunit of yeast polyadenylation factor I". Science. 274 (5292): 1514–7. Bibcode:1996Sci...274.1514J. doi:10.1126/science.274.5292.1514. PMID 8929409. S2CID 12958377. /wiki/Bibcode_(identifier)