Recent advances in collective phenomena - Festschrift on the occasion of Malte Henkel’s 60th birthdaySascha Wald, Martin Michael Müller and Christophe ChatelainEur. Phys. J. Spec. Top., 232 11 (2023) 1677-1679DOI: https://doi.org/10.1140/epjs/s11734-023-00956-9