Zero-Energy Devices for 6G: Technical Enablers at a Glance. - Onel Luis Alcaraz López; Ritesh Kumar Singh; Dinh-Thuy Phan-Huy; Efstathios Katranaras; Nafiseh Mazloum; Kalle Ruttik; Riku Jäntti; Hamza Khan; Osmel Martínez Rosabal; Pavlos Alexias; Prasoon Raghuwanshi; David E. Ruíz-Guirola; et al. (IEEE Internet Things Mag., 2025)