K. Wisłocki, I. Pielecha, J. Czajka, and D. Maslennikov, “Evaluation of the liquid fuel spray parameters based on experimental research and numerical simulation for the piezoelectric injectors”, AoT, vol. 23, no. 1, pp. 111–121, Mar. 2011, doi: 10.2478/v10174-011-0008-7.