Rodenstein, D., & Stanescu, D. (1982). Reassessment of Lung-volume Measurement By Helium Dilution and By Body Plethysmography in Chronic Air-flow Obstruction. The American Review of Respiratory Disease, 126(6), 1040-1044. https://hdl.handle.net/2078.5/144109 (Original work published 1982)