Ptyctimous mites (Acari, Oribatida) of Tanzania
  First Records of Lohmanniidae (Acari, Oribatida) from the Bermuda Islands
  New species of water mites from Oman, with some zoogeographical notes (Acari: Hydrachnidia)
  Status of Uropodina-research to the end of 1993
  On the genus Holonothrus (Acari: Oribatida) in the Australian region
  Lohmanniidae (Acari, Oribatida) from the Galapagos islands, the Cocos Island, and Central America
  New Labidostomidae from Austral Africa: the genus Sellnickiella Feider et Vasiliu, 1969
  Acari from operation Drake in New Guinea .2. Uropodidae
  The genus Blomia Oudemans (Acari: Glycyphagidae). 2. Comparison of its species