http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Fundamentals of aircraft environmental control
Basic principles -- Aircraft air conditioning -- Air cycle equipment -- Air cycle heating and refrigerating system -- Aircraft presurization system -- Indirect liquid cooling -- Vapor cycle system -- Direct liquid cooling -- Low-pressure oxygen systems. High-presure oxygen system -- Glosary