Exposure from electromagnetic fields at modern office workplaces and their risk managementKoppel, Tarmo; Tint, PiiaRiga Technical University 53rd International Scientific Conference dedicated to the 150th anniversary and the 1st Congress of World Engineers and Riga Polytechnical Institute/RTU Alumni : 11-12 October 2012, Riga, Latvija : [abstracts]2012 / p. 455 Measurements of radiofrequency radiation with a Body-Borne exposimeter in Swedish schools with Wi-FiHedendahl, Lena; Carlberg, Michael; Koppel, Tarmo; Hardell, LennartFrontiers in public health2017 / p. 1-14 : ill https://doi.org/10.3389/fpubh.2017.00279 Radiofrequency electromagnetic fields from mobile devices used for learning and workingKoppel, Tarmo; Ahonen, MikkoElektronika ir elektrotechnika = Electronics and electrical engineering2013 / p. 65-70 : ill