Katys, G. P. (1964). Continuous measurement of unsteady flow.

Katys, Georgii Petrovich. Continuous Measurement of Unsteady Flow. Oxford, New York, Pergamon Press; distributed in the Western Hemisphere by Macmillan, New York 1964, 1964.

Katys, Georgii Petrovich. Continuous Measurement of Unsteady Flow. 1964.