@article{BetzBinkowskiHammerschmidtetal.2023, author = {Fridtjof Betz and Felix Binkowski and Martin Hammerschmidt and Lin Zschiedrich and Sven Burger}, title = {Cover Picture: Resonance Expansion of Quadratic Quantities with Regularized Quasinormal Modes}, journal = {Phys. Status Solidi A}, volume = {220}, pages = {2370013}, doi = {10.1002/pssa.202370013}, year = {2023}, }