Topchishvili, M. «Biostratigraphic characterization of Lower Jurassic deposits of Georgia by Aminonites». Cuadernos de Geología Ibérica, vol. 24, vol. 24, 1998, pp. 277-92, https://revistas.ucm.es/index.php/CGIB/article/view/CGIB9898110277A.