THEZA: TeraHertz Exploration and Zooming-in for Astrophysics: An ESA Voyage 2050 White Paper. - Gurvits, Leonid I.; Paragi, Zsolt; Casasola, Viviana; Conway, John; Davelaar, Jordy; Falcke, Heino; Fender, Rob; Frey, Sándor; Fromm, Christian M.; Miró, Cristina García; Garrett, Michael A.; Giroletti, Marcello; et al. (Experimental Astronomy, 2021)