J. H. Arling, L. Bodenstein-Dresler, Y. Chu, D. Gehre, R. Hodák, M. Macko, M. Petro, E. Rukhadze, I. Štekl et al.: Commissioning of the COBRA extended demonstrator at the LNGS. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1010, 165524 (2021). doi:10.1016/j.nima.2021.165524