The occurrence in the body of Bemisia tabaci of a factor apparently related to the phenomenon of "periodic acquisition" of tomato yellow leaf curl virus.

@article{Cohen1967TheOI,
  title={The occurrence in the body of Bemisia tabaci of a factor apparently related to the phenomenon of "periodic acquisition" of tomato yellow leaf curl virus.},
  author={Sandra C. M. Cohen},
  journal={Virology},
  year={1967},
  volume={31 1},
  pages={180-3}
}