1. ALARCÓN, F.J., MARTINEZ, T.F., BARRANCO, R, CABELLO, T, DiAz, M., MOYANO, FJ. (2002): Digestive proteases during development of larvae of red palm weevil, Rhyndiophorus errugineus (Olivier, 1790) (Coleoptera: Curculionidae). Insed Biodiem. Mol. Biol., 32: 265-274. DOI: 10.1016/s0965-1748(01 )00087-x
2. DALTON, J.P., SKELLY, R, HALTON, D.W. (2004): Role of the tegument and gut in nutrient uptake by parasitic platyhelminths. Can. J. Zoo/., 82:221 -232. DOI: 10.1139/z03-213
3. DELANEY, A., WILLIAMSON, A., BRAND, A., ASHCOM, J., VARGHESE, G., GOUD, G.N., HAWDON, J.M. (2005): Cloning and characterisation of an aspartyl protease inhibitor (API-1) from Ancylostoma hookworms. Int. J. Parasitol., 35: 303 - 313. DOI: 10.1016/j.ijpa- ra.2004.11 014
4. DUBOVSKAYA, A.YA. (1973): A study of proteolytic activity in some cestode species. Parazitologiya, 7:154 -159 (In Russian)
5. DZIK, J.M. (2006): Molecules released by helminth parasites involved in host colonization. Ada Biochim. Pol., 53(1): 33 - 64