12071 Hans-Ju''rgen Bandelt/Andreas Dress: A canonical decomposition
theory for metrics on a finite set. Adv. Math. 92 (1992), 47-105.

12075 Andreas Dress: Trees, tight extensions of metric spaces, and
the cohomological dimension of certain groups - a note on combinatorial
properties of metric spaces. Adv. Math. 53 (1984), 321-402.

Andreas Dress/V. Moulton/Werner Terhalle: T-theory - an overview.
Europ. J. Comb. 17 (1996), 161-175.

12072 Andreas Dress/Werner Terhalle: The real tree.
Adv. Math. 120 (1996), 283-301.

Werner Terhalle: Ein kombinatorischer Zugang zu p-adischer Geometrie -
bewertete Matroide, Ba''ume und Geba''ude. Diss. Bielefeld 1992.

Werner Terhalle: Coordinatizing R-trees in terms of universal c-trees.
Annals Comb. 1 (1997), 183-196.

Werner Terhalle: R-trees and symmetric differences of sets.
Europ. J. Comb. 18 (1997), 825-833.

Werner Terhalle: Matroidal trees. A unifying theory of treelike spaces
and their ends. Hab. thesis Bielefeld 1998.