User:Kristinetole/sandbox


 * 1) Muir, D. C. F. (1966-10-01). "Bulk flow and diffusion in the airways of the lung". British Journal of Diseases of the Chest. 60 (4): 169–176. doi:10.1016/S0007-0971(66)80044-X. ISSN 0007-0971.