1. Surface tension as a sensitive measure to distinguish between pulmonary surfactant from different lavages
2. Dynamic tension and adsorption behavior of aqueous lung surfactants
3. See, e.g., KSV Instruments Ltd., P.O. Box 128 FIN-00381, Helsinki, Finland, or CAHN Instruments Corp. Headquarters, 5225 Verona Rd., Bldg. 1, Madison, WI 53711.
4. See, e.g., Lauda Dr. R. Wobser Gmbh. & Co. KG, Pfarrstrasse 41/43 D-97922 Lauda-Königshofen, Germany.
5. Mechanical Properties of Freely Suspended Smectic Films