References
- 1. Papers on draw resistance of tobacco products (1942-1975); Coresta Information Bulletin 1977-1, 20-33 as well as Beitr. Tabakforsch. Int. 9 (1978), 256-261.
- 2. Bethmann, M. von, and H. Bottcher: Evaluation of the second collaborative study on the comparability of three methods for measuring pressure drop of filter rods; Coresta Information Bulletin 1970-1, 3-26.
- 2a. Bethmann, M. von, and H. Bottcher: Auswertung der 2. Coresta-Ringuntersuchung i.iber die Vergleichbarkeit von drei ausgewahlten Megmethoden fi.ir den Zugwiderstand von Filterstaben; Beitr. Tabakforsch. 5 (1970), 239-252.
- 3. Flesselles, J.: Checking apparatus for measuring pressure drop; Coresta Information Bulletin 1974-1, 23-30.
- 4. Unpublished circular issued to those attending the Coresta Technology Study Group meeting held in Rome in 1971.
- 5. ISO+/TC126-SC1 and Coresta Technology Study Group: Proposal for the definition of the term "draw resistance"; C oresta Information Bulletin 1977-1, 17-33.
- 5a. Gehring, M.: Vorschlag fi.ir die Definition des Zugwiderstandes; Beitr. Tabakforsch. Int. 9 (1978), 255-261.
- 6. Schlichting, H.: Boundary layer theory, 4th ed.; McGraw-Hill Book Company, Inc., New York, 1960, pp. 10-14.
- 7. Kreith, F., and R. Eisenstadt: Pressure drop and flow characteristics of short capillary tubes at low Reynolds numbers; Transactions of the American Society of Mechanical Engineers 79 (1957), 1070-1078.
- 8. Laminar flow meters; Publication issued by Meriam Instrument Company, Cleveland, Ohio, U.S.A., 44102, File No. 501:215-1.
- 9. Schlichting, H.: Boundary layer theory, 4th ed.; McGraw-Hill Book Company, Inc., New York, 1960, p. 7.
- 10. Handbook of fundamentals, 1st ed.; American Society of Heating, Refrigeration, Air Conditioning Engineers, New York, 1967, pp. 108-109.
- 11. Strydom, M. L., and ]. P. Otto: Investigating whether the air flow through cigarettes and filter rods has laminar or turbulent characteristics; C oresta Information Bulletin 1972-2, 12-16.
- 12. Baumeister, T. ( ed.): Mark's mechanical engineers handbook, 6th ed.; McGraw-Hill Book Company, Inc., New York, 1958, pp. 4-82 - 4-85.
- 13. Kiefer, ]. E., and C. H. \Y/eatherly: New head for cigarette filter rod pressure drop instrument; Tob. Sci. 19 (1975), 86.