Lectures in 2006

• Graph colouring: theory and algorithms V
  Center for Combinatorics, Nankai University, Tianjin, P.R. China, 6 January 2006
• Structural and algorithmic aspects of Tutte sets
  Workshop on Algorithmic Graph Theory
  Oberwolfach, 17 February 2006
• Toughness in graphs
  Seminar, Department of Computer Science, Royal Holloway
  Egham, 30 March 2006
• Toughness in graphs: structural and algorithmic aspects
  22nd British Colloquium for Theoretical Computer Science
  Swansea, 6 April 2006
• Toughness in graphs: structural and algorithmic aspects
  2nd National Conference on Combinatorics and Graph Theory
  Tianjin, P.R. China, 18 August 2006
• Matchings, Tutte sets and independent sets
  Center for Combinatorics, Nankai University, Tianjin, P.R. China, 30 August 2006
• Tutte sets in graphs
  Beijing Institute of Technology
  Beijing, P.R. China, 11 September 2006