Zidar, P., Kaschl, U.I., Drobne, D., Božič, J., Štrus, J. (2003): Behavioural response in paired food choice experiments with Oniscus asellus (Crustacea, Isopoda) as an indicator of different food quality. Arh Hig Rada Toksikol, 54: 177-181.
Ziegler, A. (1997): Ultrastructural changes of the anterior and posterior sternal integument of the terrestrial isopod Porcellio scaber Latr. (Crustacea) during the moult cycle. Tissue & Cell, 29: 63-76.
Ziegler, A. (2003): Variations of calcium deposition in terrestrial isopods. In: Sfenthourakis, S., de Araujo, P.B., Hornung, E., Schmalfuss, H., Taiti, S., Szlávecz, K. (eds). The biology of terrestrial isopods V. (Crustaceana Monographs, 2). Brill Academic Publisher, Leiden: 299-309.