Skopek, J.J.SkopekTriventi, M.M.TriventiBlossfeld, Hans-PeterHans-PeterBlossfeld2026-01-272026-01-2720201470-174X0307-5079https://fis.uni-bamberg.de/handle/uniba/112791engHow do institutional factors shape PhD completion rates? : An analysis of long-term changes in a European doctoral programarticle10.1080/03075079.2020.1744125