Widga, Chris, Estados Unidos

• Bulletin of the Museum of Natural History, University of Oregon Vol. 30 (2023): New mammutids (Proboscidea) from the Clarendonian and Hemphillian of Oregon – a survey of Mio-Pliocene mammutids from North America - Articles
  New mammutids (Proboscidea) from the Clarendonian and Hemphillian of Oregon – a survey of Mio-Pliocene mammutids from North America
  Abstract  Bulletin 30, corrected techinical editor