New water mites (Hydrachnellae, Acari) from South Africa
Viets, K.O.  New and rare water mites (Hydrachnellae, Acari) from Guatemala. Part 4
Viets, K.O.  New and rare water mites (Hydrachnellae, Acari) from Guatemala. Part 3
Viets, K.O.  New and rare water mites (Hydrachnellae, Acari) from Guatemala. 2
Viets, K.O.  New and Rare Water Mites (Hydrachnellae, Acari) from Guatemala .1
Viets, K.O.  On systematics and ecology of rheophilic Hydrachnellae (Acari) of Central Africa. Part lI
Viets, K.O. and Boettger, K.  On systematics and ecology of rheophilic Hydrachnellae (Acari) of Central Africa. Part l
Viets, K.O. and Bottger, K.  Water Mites Hydrachnellae Acari from the area of Lake Kivu, Zaire (Congo)
Viets, K.O.  On a new and rare African watermite (Hydrachnellae, Acari)
Viets, K.O.  Watermites from South Africa (Hydrachnellae, Acari)
Viets, K.O.  A new Lundbladacarus species from Chile (Acari, Hydrachnellae)
Viets, K.O.  Description and biology of a new species of Arrenurus (Hydrachnellae, Acari)
Viets, K.O. and Cassagne-Mejean, F.  New findings and taxonomy of African Hydrachnellae (Acari)
Viets, K.O.  Diagnoses of new and rare Neumania species (Acari, Hydrachnellae) from South Africa
Viets, K.O.