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2. Thrust augmentation devices;Carlton,1994
3. Bulk carrier speed trials with a Sistemar CLT propeller;Hollstein;The Naval Architect,1997
4. ITTC, 1996. Report of the specialist committee on unconventional propulsors. Final report and recommendation to the 22ndITTC. pp.1–35.
5. Van Lammeren, W.P.A., 1949. Some Constructions for the improvement of the Efficiency of the Propulsion, Schipen Werf, No. 7.