Muradov, A. D.; Yar-Mukhamedova, G. S.; Mukashev, K. M.; Przybylski, M.; Sandybayev, Y. Y. XRD Analysis of Nanolayered Molybdenum Disulfide Obtained by Sol-Gel Technology. Int. j. math. phys. 2016, 7, 71-75.