@BOOK{NAP12403, title = "Physiology in the Space Environment: Volume II: Respiration", doi = "10.17226/12403", url = "https://nap.nationalacademies.org/catalog/12403/physiology-in-the-space-environment-volume-ii-respiration", year = 1968, publisher = "The National Academies Press", address = "Washington, DC" }