APA (7th ed.) Citation

Leal, J. P., & Queirós, R. (2015). CrimsonHex: An interoperable repository of programming problems.

Chicago Style (17th ed.) Citation

Leal, José Paulo, and Ricardo Queirós. CrimsonHex: An Interoperable Repository of Programming Problems. 2015.

MLA (8th ed.) Citation

Leal, José Paulo, and Ricardo Queirós. CrimsonHex: An Interoperable Repository of Programming Problems. 2015.

Warning: These citations may not always be 100% accurate.