Field, Daniel J., Bercovici, Antoine, Berv, Jacob S., Dunn, Regan, Fastovsky, David E., Lyson, Tyler R., Vajda, Vivi, and Gauthier, Jacques A. Early Evolution of Modern Birds Structured by Global Forest Collapse at the End-Cretaceous Mass Extinction. Retrieved from https://par.nsf.gov/biblio/10064548. Current Biology 28.11 Web. doi:10.1016/j.cub.2018.04.062.

Field, Daniel J., Bercovici, Antoine, Berv, Jacob S., Dunn, Regan, Fastovsky, David E., Lyson, Tyler R., Vajda, Vivi, & Gauthier, Jacques A. Early Evolution of Modern Birds Structured by Global Forest Collapse at the End-Cretaceous Mass Extinction. Current Biology, 28 (11). Retrieved from https://par.nsf.gov/biblio/10064548. https://doi.org/10.1016/j.cub.2018.04.062

Field, Daniel J., Bercovici, Antoine, Berv, Jacob S., Dunn, Regan, Fastovsky, David E., Lyson, Tyler R., Vajda, Vivi, and Gauthier, Jacques A. "Early Evolution of Modern Birds Structured by Global Forest Collapse at the End-Cretaceous Mass Extinction". Current Biology 28 (11). Country unknown/Code not available. https://doi.org/10.1016/j.cub.2018.04.062. https://par.nsf.gov/biblio/10064548.

@article{osti_10064548,
place = {Country unknown/Code not available}, title = {Early Evolution of Modern Birds Structured by Global Forest Collapse at the End-Cretaceous Mass Extinction}, url = {https://par.nsf.gov/biblio/10064548}, DOI = {10.1016/j.cub.2018.04.062}, abstractNote = {}, journal = {Current Biology}, volume = {28}, number = {11}, author = {Field, Daniel J. and Bercovici, Antoine and Berv, Jacob S. and Dunn, Regan and Fastovsky, David E. and Lyson, Tyler R. and Vajda, Vivi and Gauthier, Jacques A.}, }