@misc{indiciae1beab9a08432,
  title = {A plasmid vector with positive selection and directional cloning based on a conditionally lethal gene.},
  author = {S A Yazynin and S M Deyev and M Jucovic and R W Hartley},
  year = {1996},
  doi = {10.1016/0378-1119(95)00814-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/8635737/},
  note = {Source identifier: 8635737}
}