| article html file updated | 6 February 2020 06:51 CET | Update | https://www.mdpi.com/2073-4425/5/1/13 |
| article html file updated | 21 March 2019 11:20 CET | Update | - |
| article html file updated | 19 August 2015 18:18 CEST | Update | - |
| article html file updated | 28 April 2014 10:44 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 10:44 CEST | Original file | https://www.mdpi.com/2073-4425/5/1/13/xml |
| article supplementary file uploaded. | 23 January 2014 08:30 CET | - | https://www.mdpi.com/2073-4425/5/1/13#supplementary |
| article pdf uploaded. | 22 January 2014 09:09 CET | Version of Record | https://www.mdpi.com/2073-4425/5/1/13/pdf |
