“Complexity–entropy” diagrams and their application to the study of coal tectonic disturbanceOlga Malinnikova, Dmitry Uchaev, Denis Uchaev, Vasiliy Malinnikov and Catherine UlyanovaE3S Web Conf., 129 (2019) 01016DOI: https://doi.org/10.1051/e3sconf/201912901016