Konstantinov, V.A., et al. “Pseudo-Rotational Motion of Cyclic Molecules and Thermal Conductivity of Tetrahydrofuran”. Хабаршы. Физика сериясы, vol. 2015, no. 3, Jan. 2015, pp. 80-81, https://bph.kaznu.kz/index.php/zhuzhu/article/view/831.