A fully-decoupled discontinuous Galerkin approximation of the Cahn–Hilliard–Brinkman–Ohta–Kawasaki tumor growth modelGuang-an Zou, Bo Wang and Xiaofeng YangESAIM: M2AN, 56 6 (2022) 2141-2180DOI: https://doi.org/10.1051/m2an/2022064