@article{lankinen_armbruster_antonsen_2007, 
  title={Delayed stigma receptivity in Collinsia heterophylla
 (Plantaginaceae): genetic variation and adaptive significance in relation to pollen competition, delayed self-pollination, and mating-system evolution}, 
  volume={94}, 
  DOI={10.3732/ajb.94.7.1183}, 
  publisher={Wiley}, 
  author={Lankinen and Armbruster and Antonsen}, 
  year={2007}
  }