Gordon, Gary

• The Electronic Journal of Combinatorics Volume 14 (2007) - Research Papers
  Matroid Automorphisms of the $F_4$ Root System
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 4, Issue 1 (1997) - Research Papers
  A $\beta$ Invariant for Greedoids and Antimatroids
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 22, Issue 1 (2015) - Papers
  Linear Relations for a Generalized Tutte Polynomial
  Abstract  PDF  Linear Relations for a Generalized Tutte Polynomial  Official source