Mavrič, B. & Jenko, R. & Makovec, T. & Lipej, L. (2004)
On the occurrence of the Pelagic Stingray, Dasyatis violacea (Bonaparte, 1832), in the Gulf of Trieste (Northern Adriatic). Annales, Series Historia Naturalis, 14(2), 181–185

Lipej, L. & Makovec, T. & Soldo, A. & Žiža, V. (2000)
Occurrence of the Basking Shark, Cetorhinus maximus (Günnerus, 1765), in the waters off Piran (Gulf of Trieste, Northern Adriatic). Annales, Series Historia Naturalis, 10(2), 205–206

Lipej, L. & Makovec, T. & Orlando, M. & Žiža, V. (2000)
Records of the Sandbar Shark Carcharhinus plumbeus, (Nardo, 1827) in the Gulf of Trieste (Northern Adriatic). Annales, Series Historia Naturalis, 10(2), 199–204