Kudelcik, Jozef, Peter Bury, Peter Kopcansky, and Milan Timko. 2014. “Temperature Effect on Anisotropy of Acoustic Attenuation in Magnetic Fluids Based on Transformer Oil”. Communications - Scientific Letters of the University of Zilina 16 (1), 33-38. http://journals.uniza.sk/index.php/communications/article/view/481.