CZYŻEWSKI, Andrzej, and Bożena KOSTEK. “In Memoriam Professors Marianna Sankiewicz-Budzyński and Gustaw K.E. Budzyński - Founders of the Polish Audio Engineering”. Archives of Acoustics, vol. 43, no. 3, Sept. 2018, pp. 353–355, https://doi.org/10.24425/123907.