1. Hazards from experimental skin painting of carcinogens;Darlow, H.M.; Simmons, D.J.C.; Roe, F.J.C.;Archives ofEnvironmental Health
2. Technical circular 61SOE;Ciba-Geigy, Uvitex N.F.W.,1977
3. A slit sampler for collecting and counting air-borne bacteria;Bourdillon, R.B.; Lidwell, O.M.; Thomas, J.C.;J Hyg,1941
4. Multistage liquid impinger;May, K.R.;Bacteriological Reviews,1966
5. Spinning generators of homogeneous aerosols;Davies, C.N.; Cheah, P.K.P.;J Aerosol Sci,1984