Nakagawa, S., Matsumoto, N., Uji, M., Bertrams, M., Kerzig, C., Yanai, N. (2026). Monolithic Porous Polymer Architectures for Visible‐to‐UV Upconversion‐Driven Photochemical Reactions. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.3019584