[1]
«OXFORDIAN BIOSTRATIGRAPHY AND AMMONITE ASSOCIATIONS FROM WEST SICILY: BIOSTRATIGRAPHIC SUCCESSION OF GENUS GREGORYCERAS AND CORRELATION WITH TETHYAN PERISPHINCTID SCALE», RIPS, vol. 110, fasc. 1, mar. 2004, doi: 10.13130/2039-4942/6296.