RANACHOWSKI P, REJMUND F, PAWEŁEK A, PIĄTKOWSKI A. Acoustic-mechanical and microscopic investigation of corundum material. archacoust [Internet]. 2014 Apr. 1 [cited 2025 Jan. 13];32(4):963-9. Available from: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/696