Katzenberger, Paul MPI for Innovation and Competition, Max Planck Society;
Katzenberger, P. (2017). Eugen Ulmer (1903-1988). In S. Apel, L. Pahlow, & M. Wießner (Eds.), Biographisches Handbuch des Geistigen Eigentums (pp. 267-271). Tübingen: Mohr Siebeck.