Article • Acta Palaeontologica Polonica, January 2014, Polska Akademia Nauk Instytut Paleobiologii (Institute of Paleobiology, Polish Academy of Sciences)
Article • Acta Palaeontologica Polonica, March 2011, Polska Akademia Nauk Instytut Paleobiologii (Institute of Paleobiology, Polish Academy of Sciences)