1. David Shotton Image BioInformatics Research Group Department of Zoology University of Oxford, UK http:/ibrg.zoo.ox.ac.uk CITATION NETWORK ANALYSIS © David Shotton, 2008 Published under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Licence e-mail: david.shotton @ zoo.ox.ac.uk

2. Development of a 3D citation network: simple model Major links: between the chosen paper and those papers that it cites or that cite it. Minor links: incoming citations to or between any of those cited or citing papers Years are represented as stacked planes Size of cited or citing papers proportional to number of incoming links

3. Development of a 3D citation network: 2009

4. Development of a 3D citation network: 2010

5. Development of a 3D citation network: 2011

6. Development of a 3D citation network: 2012 Building such a network just needs access to machine-readable citation data !

7. 3D citation network Building such a network just needs access to machine- readable citation data ! Years are represented as stacked planes Size of cited or citing papers proportional to number of incoming links Major links: between the chosen paper and those papers that it cites or that cite it Minor links: incoming citations to or between those citing or cited papers