The Impact of the German 'DEAL' on Competition in the Academic Publishing Market. 8963Munich, March 2021. [PUMA: consortia costs access deal deutschland germany journals konsortium scholarly academic publishing open from:droessler] URL
Open access article processing charges 2011 - 2021. Jun 24, 2021. [PUMA: access kosten article scholarly apc journal charges processing publishing open studie from:droessler] URL
Open is not enough. Nature Physics, (15)2:113--119, Springer Science and Business Media LLC, November 2018. [PUMA: science access management physics particle publishing open from:droessler research] URL
Open Access Uptake in Germany 2010-18: Adoption in a diverse research landscape. 2020. [PUMA: study Scholarly access Empirical German Open classification research oa publishing from:droessler communication landscape] URL