TY - RPRT TI - Polymorphism of avian sarcoma virus src proteins. AU - K Beemon AU - T Hunter AU - B M Sefton PY - 1979 DO - 10.1128/jvi.30.1.190-200.1979 UR - https://pubmed.ncbi.nlm.nih.gov/225515/ ID - 225515 ER -