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• Daniel Herrmann, Tom Kamphans, Elmar Langetepe
  Exploring Simple Triangular and Hexagonal Grid Polygons Online
  Technical Report 007, Department of Computer Science I, University of Bonn, 2007.

• Florian Berger, Ansgar Grüne, Rolf Klein
  How Many Lions Can One Man Avoid?
  Technical Report 006, Department of Computer Science I, University of Bonn, 2007.
  (Extended Abstract and Presentation File from FWCG'07 New York).

• Manuel Abellanas, Ferran Hurtado, Christian Icking, Rolf Klein, Elmar Langetepe, Lihong Ma, Belén Palop, Vera Sacristán
  The Farthest Color Voronoi Diagram and Related Problems
  Technical Report 002, Department of Computer Science I, University of Bonn, 2006.

• Birgit Engels, Tom Kamphans
  On the Complexity of Randolph's Robot Game
  Technical Report 005, Department of Computer Science I, University of Bonn, 2005.

• Ansgar Grüne, Sanaz Kamali Sarvestani
  On the Density of Iterated Line Segment Intersections
  Technical Report 004, Department of Computer Science I, University of Bonn, 2005.

• Tom Kamphans, Elmar Langetepe
  Optimal competitive online ray search with an error-prone robot
  Technical Report 003, Department of Computer Science I, University of Bonn, 2005.

• Christian Icking, Tom Kamphans, Rolf Klein, Elmar Langetepe
  Exploring grid polygons online
  Technical Report 001, Department of Computer Science I, University of Bonn, 2005.

• Pankaj K. Agarwal, Rolf Klein, Christian Knauer, Micha Sharir
  Computing the Detour of Polygonal Curves
  Technical Report B 02-03, Freie Universität Berlin, Fachbereich Mathematik und Informatik, 2002.

• Manuel Abellanas, Ferran Hurtado, Christian Icking, Rolf Klein, Elmar Langetepe, Lihong Ma, Belén Palop, Vera Sacristán
  Smallest Color-Spanning Objects
  Technical Report 283, Department of Computer Science, FernUniversität Hagen, Germany, 2001.

• Christian Icking, Lihong Ma
  A Tight Bound for the Complexity of Voronoi Diagrams under Polyhedral Convex Distance Functions in 3D
  Technical Report 277, Department of Computer Science, FernUniversität Hagen, Germany, 2000.

• Lihong Ma
  Bisectors and Voronoi Diagrams for Convex Distance Functions
  Technical Report 267, Department of Computer Science, FernUniversität Hagen, Germany, 2000.

• Anne Brüggemann-Klein, Rolf Klein, Britta Landgraf
  BibRelEx: Erschließung bibliographischer Datenbasen durch Visualisierung von annotierten inhaltsbasierten Beziehungen
  Technical Report 252, Department of Computer Science, FernUniversität Hagen, Germany, 1999.

• Christian Icking, Rolf Klein, Ngoc-Minh Lê, Lihong Ma, Francisco Santos
  On Bisectors for Convex Distance Functions in 3-Space
  Technical Report 250, Department of Computer Science, FernUniversität Hagen, Germany, 1999.

• Frank Hoffmann, Christian Icking, Rolf Klein, Klaus Kriegel
  The Polygon Exploration Problem II: The Angle Hull
  Technical Report 245, Department of Computer Science, FernUniversität Hagen, Germany, 1998.

• Frank Hoffmann, Christian Icking, Rolf Klein, Klaus Kriegel
  The Polygon Exploration Problem I: A Competitive Strategy
  Technical Report 241, Department of Computer Science, FernUniversität Hagen, Germany, 1998.

• Christian Icking, Rolf Klein, Lihong Ma, Stefan Nickel, Ansgar Weißler
  On Bisectors for Different Distance Functions
  Technical Report 237, Department of Computer Science, FernUniversität Hagen, Germany, 1998.

• Anne Brüggemann-Klein, Rolf Klein, Stefan Wohlfeil
  On the Pagination of Complex Documents
  Technical Report 234, Department of Computer Science, FernUniversität Hagen, Germany, 1998.

• Christian Icking, Rolf Klein, Elmar Langetepe
  An Optimal Competitive Strategy for Walking in Streets
  Technical Report 233, Department of Computer Science, FernUniversität Hagen, Germany, 1998.

• Christian Icking, Alejandro López-Ortiz, Sven Schuierer, Ines Semrau
  Going Home Through an Unknown Street
  Technical Report 228, Department of Computer Science, FernUniversität Hagen, Germany, 1998.

• Oswin Aichholzer, Franz Aurenhammer, Christian Icking, Rolf Klein, Elmar Langetepe, Günter Rote
  phi-Self-Approaching Curves
  Technical Report 226, Department of Computer Science, FernUniversität Hagen, Germany, 1997.

• Christoph Hipke, Christian Icking, Rolf Klein, Elmar Langetepe
  How to Find a Point on a Line within a Fixed Distance
  Technical Report 220, Department of Computer Science, FernUniversität Hagen, Germany, 1997.

• Christian Icking, Rolf Klein, Elmar Langetepe
  Self-Approaching Curves
  Technical Report 217, Department of Computer Science, FernUniversität Hagen, Germany, 1997.

• Christian Icking, Rolf Klein, Elmar Langetepe
  Searching for the Kernel of a Polygon: A Competitive Strategy Using Self-Approaching Curves
  Technical Report 211, Department of Computer Science, FernUniversität Hagen, Germany, 1997.

• Anne Brüggemann-Klein, Rolf Klein, Stefan Wohlfeil
  Pagination Reconsidered
  Technical Report 205, Department of Computer Science, FernUniversität Hagen, Germany, 1996.

• Franz Aurenhammer, Rolf Klein
  Voronoi Diagrams
  Technical Report 198, Department of Computer Science, FernUniversität Hagen, Germany, 1996.

• Amitava Datta, Christian Icking
  Competitive Searching in a Generalized Street
  Technical Report 191, Department of Computer Science, FernUniversität Hagen, Germany, 1995.

• Manuel Abellanas, G. Hernandes, Rolf Klein, V. Neumann-Lara, Jorge Urrutia
  A Combinatorial Property of Convex Sets
  Technical Report 176, Department of Computer Science, FernUniversität Hagen, Germany, 1995.

• Christian Icking, Rolf Klein
  Competitive Strategies for Autonomous Systems
  Technical Report 175, Department of Computer Science, FernUniversität Hagen, Germany, 1995.

• Ngoc-Minh Lê
  Randomized Incremental Construction of Simple Abstract Voronoi Diagrams in 3-Space
  Technical Report 174, Department of Computer Science, FernUniversität Hagen, Germany, 1995.

• Manuel Abellanas, G. Hernandes, Rolf Klein, V. Neumann-Lara, Jorge Urrutia
  Voronoi-Diagrams and Containment of Families of Convex Sets on the Plane
  Technical Report 173, Department of Computer Science, FernUniversität Hagen, Germany, 1995.

• Ngoc-Minh Lê
  On Determining Optimal Strategies in Pursuit Games in the Plane
  Technical Report 172, Department of Computer Science, FernUniversität Hagen, Germany, 1995.

• Christian Icking, Rolf Klein, Lihong Ma
  An Optimal Competitive Strategy for Looking Around a Corner
  Technical Report 167, Department of Computer Science, FernUniversität Hagen, Germany, 1994.

• Rolf Klein, Andrzej Lingas
  A Linear-Time Randomized Algorithm for the Bounded Voronoi Diagram of a Simple Polygon
  Technical Report 150, Department of Computer Science, FernUniversität Hagen, Germany, 1993.

• Christian Icking, Rolf Klein (Eds.)
  Abstracts 9th European Workshop on Computational Geometry
  Technical Report 140, Department of Computer Science, FernUniversität Hagen, Germany, 1993.

• Frank Dehne, Rolf Klein
  ``The Big Sweep'': On the Power of the Wavefront Approach to Voronoi Diagrams
  Technical Report 136, Department of Computer Science, FernUniversität Hagen, Germany, 1992.

• Christian Icking, Rolf Klein, Ngoc-Minh Lê, Lihong Ma
  Convex Distance Functions in 3-space are Different
  Technical Report 133, Department of Computer Science, FernUniversität Hagen, Germany, 1992.

• Rolf Klein, Lihong Ma
  Wrapping Ellipses Around a Convex Skeleton
  Technical Report 132, Fachbereich Informatik, FernUniversität Hagen, Germany, 1992.

• Christian Icking, Rolf Klein
  The Two Guards Problem
  Technical Report 126, Department of Computer Science, FernUniversität Hagen, Germany, 1992.

• Christian Icking, Günter Rote, Emo Welzl, Chee Yap
  Shortest Paths for Line Segments
  Technical Report 125, Department of Computer Science, FernUniversität Hagen, Germany, 1992.

• Rolf Klein, Andrzej Lingas
  Manhattonian Proximity in a Simple Polygon
  Technical Report 124, Department of Computer Science, FernUniversität Hagen, Germany, 1992.

• Rolf Klein
  Walking an Unknown Street with Bounded Detour
  Technical Report 122, Department of Computer Science, FernUniversität Hagen, Germany, 1992.