| article html file updated | 6 February 2020 10:48 CET | Update | https://www.mdpi.com/2075-4426/4/3/412 |
| article html file updated | 7 May 2019 11:27 CEST | Update | - |
| article html file updated | 21 March 2019 21:08 CET | Update | - |
| article html file updated | 20 August 2015 13:02 CEST | Update | - |
| article html file updated | 18 November 2014 07:56 CET | Original file | - |
| article xml file uploaded | 18 November 2014 07:56 CET | Original file | https://www.mdpi.com/2075-4426/4/3/412/xml |
| article pdf uploaded. | 18 July 2014 08:22 CEST | Version of Record | https://www.mdpi.com/2075-4426/4/3/412/pdf |
