Harhoff, Dietmar MPI for Innovation and Competition, Max Planck Society;
https://arxiv.org/pdf/1909.00736.pdf (Preprint)
https://pure.mpg.de/pubman/faces/ViewItemFullPage.jsp?itemId=item_3283834 (Publisher version)
Bauer, V., Harhoff, D., & Kauermann, G. (2019). A Smooth Dynamic Network Model for Patent Collaboration Data, arXiv preprint 1909.00736.