| article html file updated | 6 February 2020 08:11 CET | Update | https://www.mdpi.com/2075-4426/4/2/115 |
| article html file updated | 7 May 2019 16:45 CEST | Update | - |
| article html file updated | 21 March 2019 14:33 CET | Update | - |
| article html file updated | 20 August 2015 01:08 CEST | Update | - |
| article html file updated | 24 July 2014 10:23 CEST | Original file | - |
| article xml file uploaded | 24 July 2014 10:23 CEST | Original file | https://www.mdpi.com/2075-4426/4/2/115/xml |
| article pdf uploaded. | 26 March 2014 10:52 CET | Version of Record | https://www.mdpi.com/2075-4426/4/2/115/pdf |
