A new species of Bak (Acari, Cheyletidae) from Thailand, with a key to species
  Rheophilic watermites (Acari, Hydrachnidia) from mainland Malaysia
  Biology of the European house dust mite, Dermatophagoides pteronyssinus (Trouessart)
  Study of some mites (Acari) infesting Microtus nivalis Martins, in Spain
  Observations on genital papillae of pycnonotic Brachypylina (Acari: Oribatida)
  Oribatid soil fauna of Brazil. VI. Oribatid fauna in Sao-Paulo (third part)
