1. The Global Standard Stratotype-section and Point (GSSP) for the base of the Eocene Series in the Dababiya section (Egypt) Aubry, Marie-Pierre; Ouda, Khaled; Dupuis, Christian; Berggren, William A.; Van Couvering, John A.; Ali, Jason; Brinkhuis, Henk; Gingerich, Philip. R.; Heilmann-Clausen, Claus; Hooker, Jeremy; Kent, Dennis V.; King, Chris; Knox, Robert W. O.'B.; Laga, Peter; Molina, Eustoquio; Schmitz, Birger; Steurbaut, Etienne; Ward, David R. 2007 Articles Physical geography
2. The Paleocene/Eocene boundary Global Standard Stratotype-section and Point (GSSP): Criteria for Characterisation and Correlation Aubry, Marie-Pierre; Ali, Jason; Berggren, William A.; Brinkhuis, Henk; Dupuis, Christian; Gingerich, Philip; Hardenhoi, Jan; Heilman-Clausen, Claus; Hooker, Jeremy; Kent, Dennis V.; King, Chris; Knox, Robert; Laga, Peter; Molina, Eustoquio; Schmitz, Birger; Steurbaut, Etienne; Ward, David 2002 Articles Geology