Rose, Michael MPI for Innovation and Competition, Max Planck Society;
https://www.ifw-kiel.de/fileadmin/Dateiverwaltung/IfW-Publications/system/informal-intellectual-collaboration-with-central-colleagues/kwp_2084.pdf (Publisher version)
Georg, C.-P., Rose, M., & Opolot, D. (2017). Informal Intellectual Collaboration with Central Colleagues. Kiel Working Paper, 2084.