Flexible Multi-Domain IoT Architecture for Smart Cities. - Crespo-Aguado, Maria; Martínez-Palomo, Lucía; Molner, Nuria; Torrealba-Ferrer, Arturo-José; Higón-Sorribes, Jose-Miguel; Blasco, Carlos; Ravelo, Carlos; Gomez-Barquero, David (Applied Sciences (2076-3417), 2026)