Kairbekov, Z., Eshova, Z. and Ryabikin, Y. (2011) “Study of the paramagnetic properties of brown coal of the Кiyaktinsk deposit”, Chemical Bulletin of Kazakh National University, 61(1), pp. 209-214. Available at: https://chemistry.kz/bulletin/index.php/kaznu/article/view/897 (Accessed: 14June2024).