Shokanov А.К, Smikhan Е.А, and Ospanbekov Е.А. 2020. “PHYSICAL PRINCIPLES OF THE MESSBAUER EFFECT FOR SOLVING INNER-NUCLEAR PHENOMENA IN SOLIDS”. Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences 71 (3). Almaty, Kazakhstan:146-52. https://doi.org/10.51889/2020-3.1728-7901.21.