Czygrinow, Andrzej

• The Electronic Journal of Combinatorics Volume 8, Issue 1 (2001) - Research Papers
  Spanning Trees of Bounded Degree
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 19, Issue 2 (2012) - Papers
  Tight Co-Degree Condition for Perfect Matchings in 4-Graphs
  Abstract  PDF  Latex file + eps files with figures  Official source