Environment-Monitoring IoT Devices Powered by a TEG Which Converts Thermal Flux between Air and Near-Surface Soil into Electrical Energy. - Tereza Paterova; Michal Prauzek; Jaromir Konecny; Stepán Ozana; Petr Zmij; Martin Stankus; Dieter Weise; Alexander Pierer (Sensors, 2021)