title: Comment on "Topological insulators in ternary compounds with a honeycomb lattice".
abstract: A Comment on the Letter by Zhang et al., Phys. Rev. Lett. 106, 156402 (2011).
authors.affiliation: Max Planck Institute of Microstructure Physics, Halle 06120, Germany.
authors.forename: M G
authors.initials: MG
authors.lastname: Vergniory
authors.affiliation: Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
authors.forename: M A L
authors.initials: MA
authors.lastname: Marques
authors.affiliation: Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
authors.forename: S
authors.initials: S
authors.lastname: Botti
authors.affiliation: Department of Physics, Universität Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Amsler
authors.affiliation: Department of Physics, Universität Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland.
authors.forename: S
authors.initials: S
authors.lastname: Goedecker
authors.affiliation: Donostia International Physics Center, Donostia/San Sebastian 20018, Spain.
authors.forename: E V
authors.initials: EV
authors.lastname: Chulkov
authors.affiliation: Max Planck Institute of Microstructure Physics, Halle 06120, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Ernst
authors.affiliation: Max Planck Institute of Microstructure Physics, Halle 06120, Germany.
authors.forename: A H
authors.initials: AH
authors.lastname: Romero