Off with their assists: An empirical study of driving skill in Forza Motorsport 4. - Thomas Debeauvais; Thomas Zimmermann 001; Nachiappan Nagappan; Kevin Carter; Ryan Cooper; Dan Greenawalt; Tyson Solberg (FDG, 2014)

What Drives People: Creating Engagement Profiles of Players from Game Log Data. - Erik Harpstead; Thomas Zimmermann 001; Nachiappan Nagappan; Jose J. Guajardo; Ryan Cooper; Tyson Solberg; Dan Greenawalt (CHI PLAY, 2015)