About the Authors

P. R. B. Kozowyk

Contributed equally to this work with: P. R. B. Kozowyk, G. H. J. Langejans, J. A. Poulis

p.r.b.kozowyk@arch.leidenuniv.nl

Affiliation Faculty of Archaeology, Leiden University, Leiden, the Netherlands

G. H. J. Langejans

Contributed equally to this work with: P. R. B. Kozowyk, G. H. J. Langejans, J. A. Poulis

Affiliations Faculty of Archaeology, Leiden University, Leiden, the Netherlands, Department of Anthropology and Development Studies, University of Johannesburg, Johannesburg, South Africa

J. A. Poulis

Contributed equally to this work with: P. R. B. Kozowyk, G. H. J. Langejans, J. A. Poulis

Affiliation Adhesion Institute, Delft University of Technology, Delft, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PRBK GHJL JAP. Performed the experiments: PRBK. Analyzed the data: PRBK JAP. Contributed reagents/materials/analysis tools: GHJL JAP. Wrote the paper: PRBK GHJL.