About the Authors

Rebecca H. Chisholm

Affiliation Department of Mathematics and Statistics, University of Melbourne, Victoria, Australia

Barry D. Hughes

Affiliation Department of Mathematics and Statistics, University of Melbourne, Victoria, Australia

Kerry A. Landman

kerryl@unimelb.edu.au

Affiliation Department of Mathematics and Statistics, University of Melbourne, Victoria, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RHC BDH KAL. Performed the experiments: RHC. Analyzed the data: RHC KAL. Contributed reagents/materials/analysis tools: RHC BDH KAL. Wrote the paper: RHC BDH KAL. Supervised and managed the research: KAL. Co-supervised the research: BDH.