On quantum mechanics of n-particle systems on 2-manifolds-a case study in topology
J. of Geometry and Physics, Vol. 31, 1, 1999, pp. 35-50.

Quantum mechanics on three-dimensional manifolds and knot groups
J.Phy.A; Math.Gen. 30 No. 15 L503-L506, 7.8.1997.

Zöpfe und Knoten: Quantenmechanik auf zwei- und dreidimensionalen Mannigfaltigkeiten
Dissertation, 1997, ISBN 3-932243-33-1.

N-particles on two dimensional manifolds
Proceedings of the XXI international colloquium on group theoretical methods in physics, Goslar, 15-20th July 1996, edited by H.D. Doebner et al.


Lectures on intelletual property law and international lextures on scientific problems in mathematical physics.

Teaching aassignments in intellectual property law at the Hochschule für Angewandte Wissenschaften Hamburg (HAWH).