Constrained transport and adaptive mesh refinement in the Black Hole Accretion CodeHector Olivares, Oliver Porth, Jordy Davelaar, Elias R. Most, Christian M. Fromm, Yosuke Mizuno, Ziri Younsi and Luciano RezzollaA&A, 629 (2019) A61DOI: https://doi.org/10.1051/0004-6361/201935559