PolonkaiB., KrohA., Görög Ágnes, SelmecziI., DunaiM., and BodorE. R., “First occurrence of echinoid genus Brissus in the Badenian (Middle Miocene) of Hungary and description of Brissus mihalyi n. sp.”, Földt. Közl., vol. 147, no. 4, pp. 383-398, Dec. 2017.