The shape of dendritic tips: the role of external impacts Dmitri V. Alexandrov, Andrew Kao, Peter K. Galenko, Stephanie Lippmann, Ilya O. Starodumov, Gilles Demange and Liubov V. Toropova Eur. Phys. J. Spec. Top., 232 8 (2023) 1273-1279 Published online: 12 May 2023 DOI: 10.1140/epjs/s11734-023-00853-1