Karyology and sex determination of oribatid mites
Heethoff, M.; Bergmann, P. and Norton, R.A.  Two unknown males of genus Amblyseius Berlese and their karyotypes (Mesostigmata: Phytoseiidae)
Amitai, S. and Wysoki, M.  Cytogenetical study and phylogenetic reflections on the family Tetranychidae Donnodieu
Gutierrez, J.; Helle, W. and Bolland, H.R.