1. Arnold, J. M., 1962, Mating behavior and social structure in Loligo pealei, Biol. Bull.
123: 53–57.
2. Arnold, J. M., 1965, Observations on the mating behavior of the squid Sepioteuthis sepioidea, Bull. Mar. Sci.
15: 216–222.
3. Boletzky, S. v., 1974, Élevage de céphalopodes en aquarium, Vie Milieu
24: 309–340.
4. Boletzky, S. v., 1975, The reproductive cycle of Sepiolidae (Molluscs, Cephalopoda), Pubbl. Staz. Zool. Napoli Suppl.
39: 84–95.
5. Boletzky, S. v., 1979, Growth and life-span of Sepia officinalis under artificial conditions (Mollusca, Cephalopoda), Rapp. Comm. int. Mer Médit
25/26: 159–168.