Stelter, G P Comparison of the direct and indirect methods of calculating the surface area of the lung. [electronic resource] - The American review of respiratory disease Nov 1966 - 741-2 p. digital Publication Type: Journal Article ISSN: 0003-0805 Standard No.: 10.1164/arrd.1966.94.5.741 doi Subjects--Topical Terms: Lung--anatomy & histologyMathematicsModels, Theoretical