@article{Noeker:5623,
      author        = "Noeker, Matthias and Karatekin, Özgür and Ritter,
                       Birgit",
      title         = "{Accessing the Lunar Underground: The LAva-TUbe
                       iNvestigAtion (LA-TUNA) Mission Concept.}",
      month         = "Mar",
      year          = "2021",
}