@article{reynolds1963,
  title={THE USE OF LEAD CITRATE AT HIGH pH AS AN ELECTRON-OPAQUE STAIN IN ELECTRON MICROSCOPY},
  author={Edward S. Reynolds},
  year={1963},
  journal={The Journal of Cell Biology},
  doi={10.1083/jcb.17.1.208},
  url={https://doi.org/10.1083/jcb.17.1.208}
}