About the Authors
- Adiël A. Klompmaker
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* E-mail: adielklompmaker@gmail.com
Affiliation Department of Geology, Kent State University, Kent, Ohio, United States of America
- René H. B. Fraaije
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Affiliation Oertijdmuseum De Groene Poort, Boxtel, The Netherlands
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: AAK RHBF. Performed the experiments: AAK RHBF. Analyzed the data: AAK RHBF. Contributed reagents/materials/analysis tools: AAK RHBF. Wrote the paper: AAK RHBF.