«THE SCLERACTINIAN GENUS ACTINACIS . SYSTEMATIC REVISION AND STRATIGRAPHIC RECORD OF THE TERTIARY SPECIES WITH SPECIAL REGARD TO ITALIAN OCCURRENCES». Rivista italiana di Paleontologia e Stratigrafia, vol. 101, fasc. 2, luglio 1995, https://doi.org/10.13130/2039-4942/8575.