Discharge coefficient of swirl injectors (o koeffitsiyente raskhoda tsentrobezhnykh forsunok) R. B. Akhmedov, A. D. Gorbanenko, L. M. Tsirulnikov, B. L Zarkov
IS 14511-1: Diesel engines - Testing of fuel injectors, Part 1: Hand-lever-operated testing and setting apparatus Bureau of Indian Standards