@inproceedings{DiGRA-2019-Alha,
	author        = "Kati Alha",
	booktitle     = "{Proceedings of the 13th DiGRA International Conference: Game, Play and the Emerging Ludo-Mix}",
	ee            = "http://www.digra.org/digital-library/publications/the-imbalanced-state-of-free-to-play-game-research-a-literature-review/",
	publisher     = "{Digital Games Research Association}",
	title         = "{The imbalanced state of free-to-play game research: A literature review}",
	year          = 2019,
}