Ultrastructure of sperm penetration of house fly eggs.

@article{Degrugillier1976UltrastructureOS,
  title={Ultrastructure of sperm penetration of house fly eggs.},
  author={Maurice Degrugillier and R A Leopold},
  journal={Journal of ultrastructure research},
  year={1976},
  volume={56 3},
  pages={312-25}
}