«THANETIAN AND EARLY YPRESIAN ORTHOPHRAGMINES (FORAMINIFERA: DISCOCYCLINIDAE AND ORBITOCLYPEIDAE) FROM THE CENTRAL WESTERN TETHYS (TURKEY, ITALY AND BULGARIA) AND THEIR REVISED TAXONOMY AND BIOSTRATIGRAPHY» (2007) Rivista italiana di Paleontologia e Stratigrafia, 113(3). doi:10.13130/2039-4942/5884.