TY - RPRT TI - A versatile in vivo and in vitro eukaryotic expression vector for protein engineering. AU - S Green AU - I Issemann AU - E Sheer PY - 1988 DO - 10.1093/nar/16.1.369 UR - https://pubmed.ncbi.nlm.nih.gov/3340539/ ID - 3340539 ER -