Wojtaszak, Andrzej. “The Development of the Arms Industry in Poland in the Second Half of the 1930s. The Role of General Alexander Litwinowicz”. Tools of War, edited by Tadeusz Grabarczyk, vol. 9, Lodz University Press, 2023, pp. 203-38, https://doi.org/10.18778/8331-372-6.09.