Morrall, S.; Greenwood, A. D. «A comparison of the periodic sub-structures of the trichocysts of the Cryptophyceae and Prasinophyceae». BioSystems, 12, 1980, pàg. 71–83. DOI: 10.1016/0303-2647(80)90039-8.
Grim, J. N.; Staehelin, L. A. «The ejectisomes of the flagellate Chilomonas paramecium - Visualization by freeze-fracture and isolation techniques». Journal of Protozoology, 31, 2, 1984, pàg. 259–267. DOI: 10.1111/j.1550-7408.1984.tb02957.x.