@Unpublished{Oswald:2018.2,
  author = {Peter Oswald},
  title = {Haar system as {S}chauder basis in {B}esov spaces: The limiting cases for 0 < p ≤ 1},
  annote = {article, inspreprint},
  note = {Available as INS Preprint No. 1810},
  inspreprintnum = {1810},
  year = {2018}
}