@article{phipps1970,
  title={Notes on the biology of grasshoppers (Orthoptera: Acridoidea) in Sierra Leone},
  author={John Phipps},
  year={1970},
  journal={Journal of Zoology},
  doi={10.1111/j.1469-7998.1970.tb04516.x},
  url={https://doi.org/10.1111/j.1469-7998.1970.tb04516.x}
}