1. Atlassian: Trello (2019), https://trello.com
2. Balijepally, V., Mahapatra, R., Nerur, S., Price, K.H.: Are two heads better than one for software development? The productivity paradox of pair programming. MIS Quarterly 33(1), 91–118 (2009)
3. Beck, K.: Test Driven Development, 1st edn. Addison Wesley, Boston (Nov 2002)
4. Beck, K., Andres, C.: Extreme Programming Explained, 2nd edn. Addison Wesley, Boston, USA (Nov 2004)
5. Lui, K.M., Chan, K.C.C., Nosek, J.: The effect of pairs in program design tasks. IEEE Trans. Softw. Eng. 34(2), 197–211 (2008). https://doi.ieeecomputersociety.org/10.1109/TSE.2007.70755