@unpublished{Pollinger.Rentrop.Pflueger.Kormann:2022,
  author = {Pollinger, Theresa and Rentrop, Johannes and Pfl\"uger, Dirk and Kormann, Katharina},
  title = {A mass-conserving sparse grid combination technique with biorthogonal hierarchical basis functions for kinetic simulations},
  note = {Available as INS Preprint No. 2209},
  year = {2022}
}