17 Foege, J. Nils Lauritzen, Ghita Dragsdahl Tietze, Frank Salge, Torsten Oliver 18ws-92.6541 Reconceptualizing the paradox of openness: How solvers navigate sharing-protecting tensions in crowdsourcing Research policy Research policy Elsevier Amsterdam 0048-7333 10.1016/j.respol.2019.01.013 1323 - 1339 6 48 Journal Article 2019 ERESRWTH-2019-00015 2019 https://reserves.ub.rwth-aachen.de/record/117505 https://doi.org/10.1016/j.respol.2019.01.013