“CALCAREOUS PLANKTON BIOSTRATIGRAPHY OF THE SANTONIAN-CAMPANIAN BOUNDARY INTERVAL IN THE BOTTACCIONE SECTION (UMBRIA-MARCHE BASIN, CENTRAL ITALY)”. 2020. RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA 126 (3). https://doi.org/10.13130/2039-4942/14399.