RANACHOWSKI, P., REJMUND, F., RANACHOWSKI, Z., PAWEŁEK, A., & PIĄTKOWSKI, A. (2008). Research of Degradation Processes of Insulator Porcelain C 130 Type. Archives of Acoustics, 33(4(S), 117–122. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/845