Lennart Nacke Craig A. Lindley Sophie Stellmach Log Who's Playing: Psychophysiological Game Analysis Made Easy through Event Logging. 150-157 2008 Fun and Games http://dx.doi.org/10.1007/978-3-540-88322-7_15 conf/fungames/2008 db/conf/fungames/fungames2008.html#NackeLS08