About the Authors
- Johan Bollen, Herbert Van de Sompel, Ryan Chute
- Digital Library Research and Prototyping Team, Research Library, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
- Aric Hagberg
- Theoretical Division, Mathematical Modeling and Analysis Group, and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JB. Performed the experiments: JB RC. Analyzed the data: JB AH RC. Wrote the paper: JB HVdS AH. Methodological consultancy: HVdS.