Klimek, Andrzej, Bogusław Chachaj, and Leszek Kosakowski. 2011. “Influence of Sewage Sludge Composts With Straw or Ash on Oribatid Mites (Acari, Oribatida) from Pine Forest Litter in Laboratory Conditions”. Biological Letters 48 (1):19-27. https://doi.org/10.2478/v10120-011-0002-z.