Development of Visual Sensors and Augmented Reality Based Smart Glasses for Enhancement of Business Sustainability and Wellbeing of the Aging Workforce. - Christos C. Spandonidis; Fotis Giannopoulos; Jerónimo Agulló; Nikolaos S. Tachos; Lars Frederiksen; Aarón Martín; Ramón González Carvajal (IEEE Instrum. Meas. Mag., 2023)