1. and , Impeller Pumps, Pergamon Press, Oxford, 1965.
2. and , Centrifugal Pumps: Design & Application. Chap. 3, Gulf Publishing Company, Houston, Texas, 1985, pp. 28-45.
3. and , ‘A rapid approximate method for the design of hub shroud profiles of centrifugal impellers of given blade shape’, NACA Technical Note 3399, 1955.
4. and , ‘Design and test of mixed-flow impellers VIII—comparison of experimental results for three impellers with shroud redesigned by rapid approximate method’, N ACA Research Memorandum E56L07, 1957.
5. and , ‘Impeller blade design method for centrifugal compressors’, N ASA SP304, Part 2, 1974, pp. 537-563.