1. Fine structure of a secondarily developed eye in the freshwater moss-mite,Hydrozetes lemnae (Coggi, 1899) (Acari: Oribatida)
2. Aspects concerning the structure and function of the lenticulus and clear spot of certain oribatids (Acari: Oribatida);Alberti;Acarologia,1990a
3. Fine structure and function of the lenticulus and clear spot of Oribatids (Acari: Oribatida);Alberti;L’ontogènese et le concept de stase chez les Arthropodes,1990b
4. Fine structure of spermiogenesis, spermatozoa and spermatophore of Saxidromus delamarei (Saxidromidae, Actinotrichida, Acari)
5. Spermatophores and spermatozoa of oribatid mites (Acari: Oribatida). Part II. Functional and systematic considerations;Alberti;Acarologia,1991