MIECZNIK, Piotr. “Ultrasonic and Hypersonic Investigations of Vibrational Relaxation in Liquid Thiophene”. Archives of Acoustics 3, no. 4 (December 31, 1978): 273–281. Accessed March 22, 2026. https://acoustics.ippt.pan.pl/index.php/aa/article/view/3462.