@inproceedings{FDG-2017-Valls-VargasZO,
	author        = "Josep Valls-Vargas and Jichen Zhu and Santiago Ontañón",
	booktitle     = "{Proceedings of the 12th International Conference on the Foundations of Digital Games}",
	doi           = "10.1145/3102071.3102079",
	isbn          = "978-1-4503-5319-9",
	pages         = "10",
	publisher     = "{ACM}",
	title         = "{Graph grammar-based controllable generation of puzzles for a learning game about parallel programming}",
	year          = 2017,
}