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♦ 1Dietary shifts in the Western Whip Snake Coluber viridiflavus LACÉPÈDE, 1789, of the small Mediterranean island of Ustica (Squamata: Serpentes: Colubridae), ERNESTO FILIPPI & MASSIMO CAPULA & LUCA LUISELLI, HERPETOZOA 16 ( 1/2): 61 - 66 (2003)
♦ 2Geographic variation in the diet composition of a secretive Mediterranean colubrid snake: Coronella girondica from Spain and Italy, Luca Luiselli, Juan M. Pleguezuelos, Massimo Capula, Carmen Villafranca, Ital. J. Zool., 68: 57-60 (2001)