Three-dimensional modeling of the Ca II H and K lines in the solar atmosphereJohan P. Bjørgen, Andrii V. Sukhorukov, Jorrit Leenaarts, Mats Carlsson, Jaime de la Cruz Rodríguez, Göran B. Scharmer and Viggo H. HansteenA&A, 611 (2018) A62DOI: https://doi.org/10.1051/0004-6361/201731926