Corrigendum to "Hydraulic stimulation and fluid circulation experiments in underground laboratories: Stepping up the scale towards engineered geothermal systems" by Gischig et al. https://doi.org/10.1016/j.gete.2019.100175. (December 2020) - Gischig, Valentin S.; Giardini, Domenico; Amann, Florian; Hertrich, Marian; Krietsch, Hannes; Loew, Simon; Maurer, Hansruedi; Villiger, Linus; Wiemer, Stefan; Bethmann, Falko; Brixel, Bernard; Doetsch, Joseph; et al.