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2. Learner EE (1978) Specification Searches, Ad Hoc Inference with Non-experimental Data. Wiley, New York
3. Lipfert FW, Malone RG, Daum ML, Mendell NR, Yang CC (1988) A Statistical Study of the Macroepidemiology of Air Pollution and Total Mortality, BNL Report 52122, to U.S. Dept. of Energy
4. Lipfert FW (1978) “The Association of Human Mortality with Air Pollution: Statistical Analyses by Region, by Age, and by Cause of Death”, Ph.D. Dissertation, Union Graduate School, Cincinnati, Ohio. (available from Eureka Publications, Mantua, NJ 08051) Also see Lipfert FW, “The Association of Air Pollution and Human Mortality: A Review of Previous Studies”, APCA Paper 44.1, presented at the 70th APCA Annual Meeting, Toronto
5. International Electric Research Exchange (IERE) (1981) Effects of SO2 and Its Derivatives on Health and Ecology, Vol 1, Human Health, (available from EPRI Research Reports Center, P.O. Box 50490, Palo Alto, CA 94303 )