Frederickson, J.A., Engel, M.H., and Cifelli, R.L. Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis. Retrieved from https://par.nsf.gov/biblio/10167970. Palaeogeography, Palaeoclimatology, Palaeoecology 552.C Web. doi:10.1016/j.palaeo.2020.109780.

Frederickson, J.A., Engel, M.H., & Cifelli, R.L. Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis. Palaeogeography, Palaeoclimatology, Palaeoecology, 552 (C). Retrieved from https://par.nsf.gov/biblio/10167970. https://doi.org/10.1016/j.palaeo.2020.109780

Frederickson, J.A., Engel, M.H., and Cifelli, R.L. "Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis". Palaeogeography, Palaeoclimatology, Palaeoecology 552 (C). Country unknown/Code not available. https://doi.org/10.1016/j.palaeo.2020.109780. https://par.nsf.gov/biblio/10167970.

@article{osti_10167970,
place = {Country unknown/Code not available}, title = {Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis}, url = {https://par.nsf.gov/biblio/10167970}, DOI = {10.1016/j.palaeo.2020.109780}, abstractNote = {}, journal = {Palaeogeography, Palaeoclimatology, Palaeoecology}, volume = {552}, number = {C}, author = {Frederickson, J.A. and Engel, M.H. and Cifelli, R.L.}, }