@unpublished{BarkerGriebelHamaekers2024,
  author = {Barker,James and Griebel, Michael and Hamaekers, Jan},
  title = {On Multilevel Energy-Based Fragmentation Methods},
  annote = {article, inspreprint},
  note = {Available as INS Preprint No. 2403},
  inspreprintnum = {2403},
  year = {2024}
}