TY - RPRT TI - Control of directionality in lambda site specific recombination. AU - W Bushman AU - J F Thompson AU - L Vargas AU - A Landy PY - 1985 DO - 10.1126/science.2932798 UR - https://pubmed.ncbi.nlm.nih.gov/2932798/ ID - 2932798 ER -