Research and Development of a COVID-19 Tracking System in Order to Implement Analytical Tools to Reduce the Infection Risk. - Erik Vavrinsky; Tomás Závodník; Tomas Debnar; Lubos Cernaj; Jozef Kozarik; Michal Micjan; Juraj Nevrela; Martin Donoval; Martin Kopani; Helena Kosnácová (Sensors, 2022)