PYSZNIAK, J., and J. HOŁA. “Application of Acoustic Methods to Assessment of Concrete Humidity Influence on the Process of Concrete Destruction”. Archives of Acoustics 16, no. 2 (May 1, 2014): 343–353. Accessed January 17, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/1235.