Hochuli, Peter A. (1981): Paleoclimatic evidence inferred from sporomorph associations. Laboratoire de Geologie de l'Universite, Athens, Greece, In: Mitzopoulos, Maxime K. (editor), Marinos, G. (editor), Symeonidis, N. (editor), Proceedings of the VII international congress on Mediterranean Neogene, 4, 207-214, georefid:1997-050214