TY - RPRT TI - Lambda cro repressor complex with OR3 operator DNA. 19F nuclear magnetic resonance observations. AU - W J Metzler AU - P Lu PY - 1989 DO - 10.1016/0022-2836(89)90372-0 UR - https://pubmed.ncbi.nlm.nih.gov/2522553/ ID - 2522553 ER -