TY - RPRT TI - A simplified method for mapping deletion/substitution mutants of bacteriophage lambda. AU - T G Fanning AU - P H Schreier AU - D E Büchel AU - R W Davies PY - 1977 DO - 10.1016/0003-2697(77)90598-x UR - https://pubmed.ncbi.nlm.nih.gov/332007/ ID - 332007 ER -