Systematic evaluation of variability detection methods for eROSITA Johannes Buchner, Thomas Boller, David Bogensberger, Adam Malyali, Kirpal Nandra, Joern Wilms, Tom Dwelly and Teng Liu A&A, 661 (2022) A18 Published online: 18 May 2022 DOI: 10.1051/0004-6361/202141099