@article{ratnayake_gunatilleke_wijesundara_saunders_2007, 
  title={Pollination Ecology and Breeding System of Xylopia championii (Annonaceae): Curculionid Beetle Pollination, Promoted by Floral Scents and Elevated Floral Temperatures}, 
  volume={168}, 
  DOI={10.1086/521689}, 
  publisher={University of Chicago Press}, 
  author={Ratnayake and Gunatilleke and Wijesundara and Saunders}, 
  year={2007}
  }