CZARNECKI, Stefan, Zbigniew ENGEL, and Ryszard PANUSZKA. “Correlation Method of Measurements of Sound Power in the Near Field Conditions”. Archives of Acoustics 1, no. 3 (March 7, 2016): 201–213. Accessed January 18, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/3514.