The `dune-mmdg` module includes five test problems, `dg1` to `dg5`, for the bulk scheme and seven test problems, `mmdg1` to `mmdg7`, for the coupled scheme.
The test problems `dg2`, `mmdg2`, `mmdg5`, `mmdg6` and `dg4`/`mmdg7` correspond to the examples 5.1, 5.2, 5.3, 5.4/5.5 and 5.6 in [1] in the given order.
The test problems `dg2`, `mmdg2`, `mmdg5`, `mmdg6` and `dg4`/`mmdg7` correspond to the examples 5.1, 5.2, 5.3, 5.4/5.6 and 5.7 in [1] in the given order.