Linderoth, Jonas, Staffan Björk, and Camilla Olsson. “Should I Stay or Should I Go? A Study of Pickup Groups in Left 4 Dead 2”. Transactions of the Digital Games Research Association 1, no. 2 (March 10, 2014). Accessed October 18, 2024. https://todigra.org/index.php/todigra/article/view/1700.