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Campbell DL, Noonan GP, Merinar TR, Stobbe JA (April 1994). "Estimated workplace protection factors for positive-pressures". Am Ind Hyg Assoc J. 55 (4): 322–9. doi:10.1080/15428119491018961. PMID8209837.
Dreger RW, Jones RL, Petersen SR (August 2006). "Effects of the self-contained breathing apparatus and fire protective clothing on maximal oxygen uptake". Ergonomics. 49 (10): 911–20. doi:10.1080/00140130600667451. PMID16803723. S2CID23608869.