Isolation and identification of a helper virus found in the Moloney sarcoma-leukemia virus complex.

@article{Fischinger1969IsolationAI,
  title={Isolation and identification of a helper virus found in the Moloney sarcoma-leukemia virus complex.},
  author={Peter J. Fischinger and Christine Moore and T. E. O'CONNOR},
  journal={Journal of the National Cancer Institute},
  year={1969},
  volume={42 4},
  pages={605-22}
}