A new proof of the independence ratio of triangle-free cubic graphs. - Christopher Carl Heckman; Robin Thomas 001 (Discret. Math., 2001)

Independent sets in triangle-free cubic planar graphs. - Christopher Carl Heckman; Robin Thomas 001 (J. Comb. Theory B, 2006)

Tiling 4-Rowed Rectangles with Dominoes: 11187. - Li Zhou 001; Christopher Carl Heckman; Jerry Minkus; et al. (Am. Math. Mon., 2007)

On the tightness of the I independence ratio. - Christopher Carl Heckman (Discret. Math., 2008)

Getting to Know You, Directly and Indirectly: 11262. - Ashay Burungale; Kenneth Schilling; Christopher Carl Heckman (Am. Math. Mon., 2008)

On Sara's Dove Bar Habit. - David M. Einstein; Christopher Carl Heckman; Timothy S. Norfolk (Am. Math. Mon., 2009)

Erdös-Gyárfás Conjecture for Cubic Planar Graphs. - Christopher Carl Heckman; Roi Krakovski (Electron. J. Comb., 2013)