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“Effects of the self-contained breathing apparatus and fire protective clothing on maximal oxygen uptake”. Ergonomics49 (10): 911–20. (August 2006). doi:10.1080/00140130600667451. PMID16803723.
“Estimated workplace protection factors for positive-pressures.”. Am Ind Hyg Assoc J55 (4): 322–9. (April 1994). doi:10.1080/15428119491018961. PMID8209837.