Integrated stratigraphy of the Oligocene pelagic sequence in the Umbria-Marche basin (northeastern Apennines, Italy): a potential Global Stratotype Section and Point (GSSP) for the Rupelian/Chattian boundary - Coccioni, Rodolfo; Pross, Jörg (The Geological Society of America bulletin, 2008)
Gesehen am 24.02.2015