https://www.cv.imm.uran.ru/e/3241740-activity-analysis-in-software-visualization-systems

V.L. Averbukh, N.V. Averbukh , I.L. Gvozdarev, G.I. Levchuk, Activity Analysis in Software Visualization Systems // Proceedings of GraphiCon 2019 Computer Graphics and Vision, pp 77-81. DOI: doi.org/10.30987/graphicon-2019-2-77-81.