Sixty years after "A review of the genera of the family Tydeidae" (Acariformes: Tydeoidea: Tydeidae)
  Contribution to the knowledge of the oribatid mite genus Discoppia (Acari, Oribatida, Oppiidae)
  Revision of the genus Pseudobryobia McGregor, 1950 (Acari, Tetranychidae)
  The family Parasitidae (Acari: Mesostigmata) - history, current problems and challenges
  Ptyctimous mites (Acari, Oribatida) of Tanzania
  Contribution to the knowledge of the genus Plenotocepheus (Acari, Oribatida, Otocepheidae)
  The oribatid mite genus Acaroceras (Acari, Oribatida, Microzetidae)
  Considerations on the genus Multioppia Hammer, 1961, new species of the genus from Romania
  New Arrenurus (Acari: Hydrachnidia: Arrenuridae) from the Parana River basin (Argentina)
  A review of the genus Proctotydaeus berlese (Actinedida: Tydeidae: Pronematinae)
  New species of predatory mites of the genus Pseudoparasitus Oudemans, 1902 (Acarina, Parasitiformes)
  Four new species of the genus Imparipes (Acarina, Tarsonemina, Scutacaridae) from Ireland
  System of the Phthiracaroidea (Oribatida, Euptyctima)
  Psorobia bos Johnston, 1964, the cattle itch-mite. Description of the male (Acari: Psorergatidae)
  Notes on the genus Horstia Oudemans, 1905 (Acari, Acaridae) phoretic on Hymenoptera
  Morphology and systematics of the larvae of the Unionicola species (Hydrachnellae, Acari) of Germany
  Mites of the genus Cryptognathus from Australia, New Zealand, and the Niue lsland
  On the system of classification of ticks of the family Argasidae