@article{sogayar_gregório_1998, 
  title={Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine}, 
  volume={93}, 
  DOI={10.1590/s0074-02761998000300016}, 
  publisher={FapUNIFESP (SciELO)}, 
  author={Sogayar and Gregório}, 
  year={1998}
  }