Bräuer, Juliane Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Max Planck Society;
https://www.psychologytoday.com/blog/smarter-you-think/202104/working-together-and-talking-about-it?eml (Any fulltext)
Bräuer, J. (2021). Working together—and talking about it: discover the cooperative string-pulling task. Psychology today, 3532134.