2025
Reference coverage analysis of OpenAlex compared to Web of Science and Scopus.
Scientometrics, April, 2025

Estimating transformative agreement impact on hybrid open access: A comparative large-scale study using Scopus, Web of Science and open metadata.
CoRR, April, 2025

How open are hybrid journals included in transformative agreements?
Quant. Sci. Stud., 2025

2024
Understanding differences of the OA uptake within the German University landscape (2010-2020): Part 2 - repository-provided OA.
Scientometrics, May, 2024

Analysis of the Publication and Document Types in OpenAlex, Web of Science, Scopus, Pubmed and Semantic Scholar.
CoRR, 2024

2023
Understanding differences of the OA uptake within the German university landscape (2010-2020): part 1 - journal-based OA.
Scientometrics, June, 2023

No deal: German researchers' publishing and citing behaviors after Big Deal negotiations with Elsevier.
Quant. Sci. Stud., 2023

Understanding differences of the OA uptake within the Germany university landscape (2010-2020) - Part 2: repository-provided OA.
CoRR, 2023

2022
Toward transparency of hybrid open access through publisher-provided metadata: An article-level study of Elsevier.
J. Assoc. Inf. Sci. Technol., 2022

2021
No Deal: German Researchers' Publishing and Citing Behaviours after Big Deal Negotiations with Elsevier.
Dataset, May, 2021

No Deal: Investigating the Influence of Restricted Access to Elsevier Journals on German Researchers' Publishing and Citing Behaviours.
Dataset, May, 2021

Open access uptake in Germany 2010-2018: adoption in a diverse research landscape.
Scientometrics, 2021

Response to comment on "Open is not forever: A study of vanished open access journals".
J. Assoc. Inf. Sci. Technol., 2021

Open is not forever: A study of vanished open access journals.
J. Assoc. Inf. Sci. Technol., 2021

No Deal: Investigating the Influence of Restricted Access to Elsevier Journals on German Researchers' Publishing and Citing Behaviours.
CoRR, 2021

Transparency to hybrid open access through publisher-provided metadata: An article-level study of Elsevier.
CoRR, 2021

2019
datacarpentry/R-ecology-lesson: Data Carpentry: Data Analysis and Visualization in R for Ecologists, June 2019.
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Dataset, July, 2019

The Two-Way Street of Open Access Journal Publishing: Flip It and Reverse It.
Publ., 2019

Open Access - Towards a non-normative and systematic understanding.
CoRR, 2019

2018
Open Science Support as a Portfolio of Services and Projects: From Awareness to Engagement.
Publ., 2018

2017
Conquaire: Towards an Architecture Supporting Continuous Quality Control to Ensure Reproducibility of Research.
D Lib Mag., 2017

2015
Der Wandel der Informationspraxis in Forschung und Bibliothek.
ZfBB, 2015

2013
PlosOpenR - Exploring FP7 funded PLOS publications.
Inf. Serv. Use, 2013

Towards Linked Research Data: an Institutional Approach.
Proceedings of the 3rd Workshop on Semantic Publishing, 2013

plosOpenRExploring FP7 funded PLOS publications.
Proceedings of the Mining the Digital Information Networks, 2013

2008
Anthropological motivated usability evaluation: An exploration of IREON - international relations and area studies gateway.
Libr. Hi Tech, 2008