Modern methods and technology for doing classical taxonomy
Fisher, J.R. and Dowling, A.P.G.  Comparison of two species of mites of the same genus, Riccardoella associated with Mollusks
Graham, F.J.; Ford, J.B. and Runham, N.W.  Some notes on morphology of mites of the genus Pygmephorus (Acari, Heterostigmata)
Dastych, H. and Rack, G.  Fine structure of the egg shell of Tyrophagus putrescentiae (Schrank) (Acarina: Acaridae)
Callaini, G. and Mazzini, M.