«THANETIAN AND EARLY YPRESIAN ORTHOPHRAGMINES (FORAMINIFERA: DISCOCYCLINIDAE AND ORBITOCLYPEIDAE) FROM THE CENTRAL WESTERN TETHYS (TURKEY, ITALY AND BULGARIA) AND THEIR REVISED TAXONOMY AND BIOSTRATIGRAPHY», RIPS, vol. 113, fasc. 3, nov. 2007, doi: 10.13130/2039-4942/5884.