M. Eriņš, O. Minejeva, Z. Markovičs, J. Lauznis, and R. Kivlenieks, “RESEARCH OF HUMAN FATIGUE AND MEASUREMENT PARAMETERS FOR WORKABILITY ASSESSMENT”, ETR, vol. 2, pp. 38–43, Jun. 2019, doi: 10.17770/etr2019vol2.4148.