KUBISZ, Leszek, Andrzej SKUMIEL, Arkadiusz JÓZEFCZAK, and Edward PANKOWSKI. 2008. “Effect of Magnetic Field on Electric and Acoustic Properties of the PDMS Ferromagnetic Gel”. Archives of Acoustics 33 (4(S): 111–116. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/844.