The systematics and geographic distribution of East African Veigaiidae (Acarina, Mesostigmata)
  Gamasellus (Acarina: Mesostigmata) from East African mountains
  The systematic position of Panteniphis africanus (Acarina: Mesostigmata)
  The Afrogamasellus Loots and Ryke and Afrodacarellus n. gen. (Acarina: Rhodacaridae) of Tanzania
  Ascinae and Podocinidae (acarina mesostigmata) from Tanzania
  Gamasellodes bicolor (Berlese, 1918) (Acarina: Ascidae) and its relatives
  Systematics and biology of the genus Veigaia (Acarina: Mesostigmata) from Maryland
  The genus Asca von Heyden (Acarina: Mesostigmata) in North America, Hawaii and Europe