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2. Mica Track Microfilters Applied in a Cascade Particle Fractionator at an Industrial Plant;Tress;Nuclear Tracks,1982
3. Nuclear Track Microfilters Made of Mica;Vater;NIM,1980
4. A Mica Microfilter Cascade Fractionator Used to Obtain Aerosol Size Distribution;Vater;Nuclear Tracks,1984