Rasmussen, L. B. “Molluscan Faunas and Biostratigraphy of the Marine Younger Miocene Formations in Denmark. Part I: Geology and Biostratigraphy”. Danmarks Geologiske Undersøgelse II. Række, vol. 88, Dec. 1966, pp. 1-358, doi:10.34194/raekke2.v88.6879.