| 
            Margolskee RF, et al. Epstein-Barr virus shuttle vector for stable episomal replication of cDNA expression libraries in human cells.  Mol. Cell. Biol. 8: 2837-2847, 1988. PubMed: 2841588
         
            Mulligan RC, Berg P. Expression of a bacterial gene in mammalian cells.  Science 209: 1422-1427, 1980. PubMed: 6251549
         
            Southern PJ, Berg P. Transformation of mammalian cells to antibiotic resistance with a bacterial gene under control of the SV40 early region promoter.  J. Mol. Appl. Genet. 1: 327-341, 1982. PubMed: 6286831
         
            Okayama H, Berg P. A cDNA cloning vector that permits expression of cDNA inserts in mammalian cells.  Mol. Cell. Biol. 3: 280-289, 1983. PubMed: 6300662
         
            Mulligan RC, et al. Synthesis of rabbit beta-globin in cultured monkey kidney cells following infection with a SV40 beta-globin recombinant genome.  Nature 277: 108-114, 1979. PubMed: 215915
         |