Veli-Matti Karhulahti. Puzzle Is Not a Game! Basic Structures of Challenge. In Celia Pearce, John Sharp, Helen W. Kennedy, editors, Proceedings of the 2013 DiGRA International Conference: DeFragging Game Studies, DiGRA 2013, Atlanta, GA, USA, August 26-29, 2013. Digital Games Research Association, 2013. [doi]
@inproceedings{Karhulahti13-0,
title = {Puzzle Is Not a Game! Basic Structures of Challenge},
author = {Veli-Matti Karhulahti},
year = {2013},
url = {http://www.digra.org/wp-content/uploads/digital-library/paper_179.pdf},
researchr = {https://researchr.org/publication/Karhulahti13-0},
cites = {0},
citedby = {0},
booktitle = {Proceedings of the 2013 DiGRA International Conference: DeFragging Game Studies, DiGRA 2013, Atlanta, GA, USA, August 26-29, 2013},
editor = {Celia Pearce and John Sharp and Helen W. Kennedy},
publisher = {Digital Games Research Association},
}