Zhai, Z., C. Fan, and Y. Ming. “Learned Spatio-Temporal Texture Descriptors for RGB-D Human Action Recognition”. COMPUTING AND INFORMATICS, vol. 37, no. 6, Feb. 2019, pp. 1339-62, https://www.cai.sk/ojs/index.php/cai/article/view/2018_6_1339.