Studies on Escherichia coli sex factors. IV. Molecular weights of the DNA of several F' elements.

@article{Freifelder1968StudiesOE,
  title={Studies on Escherichia coli sex factors. IV. Molecular weights of the DNA of several F' elements.},
  author={D L Freifelder},
  journal={Journal of molecular biology},
  year={1968},
  volume={35 1},
  pages={95-102}
}