How to identify peer-reviewed publications: Open-identity labels in scholarly book publishing

This work was supported by the Ministry of Science and Higher Education in Poland (https://www.gov.pl/nauka/) within the DIALOG Programme: the project title ‘Research into Excellence Patterns in Science and Art’. Tim Engels and Raf Guns thank the Flemish government for its funding of the Center for R&D Monitoring (ECOOM). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.