Brustur, Titus.
" Ubinia jipai n. isp. and Megagrapton isp. (Graphoglyptida) in the middle member of the Sinaia formation (Upper Berriasian-Lower Hauterivian) from Prahova Valley (Romania)" <em>Geo-Eco-Marina</em> [Online], Volume 28(31 December 2022)