Chappell, Glenn G.

• The Electronic Journal of Combinatorics Volume 11, Issue 1 (2004) - Research Papers
  Coloring with no $2$-Colored $P_4$'s
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 20, Issue 4 (2013) - Papers
  Maximum Induced Forests in Graphs of Bounded Treewidth
  Abstract  PDF  indforest.zip  official source
• The Electronic Journal of Combinatorics Volume 25, Issue 4 (2018) - Papers
  Path Choosability of Planar Graphs
  Abstract  PDF  ZIP of source  Official source files