Thermoelectric Energy Harvesting for Oxygen Determination in Refrigerated Intelligent Packaging. - Pablo Escobedo Araque; Isabel M. Pérez de Vargas-Sansalvador; Nuria López-Ruiz; Luis F. Capitán-Vallvey; Alberto J. Palma; Miguel Ángel Carvajal; Antonio Martínez-Olmos (IEEE Trans. Instrum. Meas., 2020)