KROMULSKI J. Identification of uncorrelated sources of exciting forces by means of the methods of crosspower spectrum matrix decomposition into singular values and eigenvalues. Arch. Acoust. [Internet]. 1998 Jun. 30 [cited 2026 Mar. 4];23(2):227-38. Available from: https://acoustics.ippt.gov.pl/index.php/aa/article/view/908