Discovering motifs to fingerprint multi-layer networks: a case study on the connectome of C. Elegans Deepak Sharma, Matthias Renz and Philipp Hövel Eur. Phys. J. B, 98 1 (2025) 10 Published online: 20 January 2025 DOI: 10.1140/epjb/s10051-024-00848-4