title: A planar, aromatic bicyclo-tetraborane(4).
authors.affiliation: Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Maier
authors.forename: Matthias
authors.initials: M
authors.lastname: Hofmann
authors.forename: Hans
authors.initials: H
authors.lastname: Pritzkow
authors.forename: Walter
authors.initials: W
authors.lastname: Siebert