TY - RPRT TI - A counterselectable pACYC184-based lacZ alpha-complementing plasmid vector with novel multiple cloning sites; construction of chromosomal deletions in Klebsiella pneumoniae. AU - S Geissler AU - M Drummond PY - 1993 DO - 10.1016/0378-1119(93)90474-h UR - https://pubmed.ncbi.nlm.nih.gov/8294011/ ID - 8294011 ER -