1. Retrospective industrial hygiene surveys;Esmen, N.;Am Ind Hyg Assoc J,1979
2. Limitations to the use of employee exposure data on air contaminants in epidemiologic studies;Ulfvarson, U.;Int Arch Environ Health,1983
3. Alternative ways of monitoring occupational exposure;Roach, S.A.,1991
4. Assessment of long-term exposures to toxic substances in air;Rappaport, S.M.;Ann Occup Hyg,1991
5. An investigation of the dependence of exposure variability on the interval between measurements;Symanski, E.; Rappaport, S.M.;Ann Occup Hyg,1994