Avotins, Ansis, Leslie Robert Adrian, Ricards Porins, Peteris Apse-Apsitis, and Leonids Ribickis. 2021. “Smart City Street Lighting System Quality and Control Issues To Increase Energy Efficiency and Safety”. The Baltic Journal of Road and Bridge Engineering 16 (4): 28-57. https://doi.org/10.7250/bjrbe.2021-16.538.