@article{mcgonigle1990,
  title={A new method which gives an objective measure of colonization of roots by vesicular—arbuscular mycorrhizal fungi},
  author={Terence P. McGonigle and M. H. Miller and D. G. Evans and G. Fairchild and J. Swan},
  year={1990},
  journal={New Phytologist},
  doi={10.1111/j.1469-8137.1990.tb00476.x},
  url={https://doi.org/10.1111/j.1469-8137.1990.tb00476.x}
}