Effect of pollution with cement dust on the edaphic gamasid mite fauna (Acari: Gamasina) in different forest ecosystems from Romania
  The effect of mean winter temperature around 0°C on the population size of the American dog tick Dermacentor variabilis, Say (Acarina: Ixodidae)
  Ecology and ethology of Ixodes ricinus Linnaeus 1758, in Switzerland (Acarina, Ixodoidea). First note: numeral fluctuations