On embeddings of CAT(0) cube complexes into products of trees via colouring their hyperplanes. - Victor Chepoi; Mark F. Hagen (J. Comb. Theory B, 2013)

Cocompactly cubulated crystallographic groups. - Mark F. Hagen (J. Lond. Math. Soc., 2014)

Non-colorable hierarchically hyperbolic groups. - Mark F. Hagen (Int. J. Algebra Comput., 2023)