| article html file updated | 6 February 2020 18:55 CET | Update | https://www.mdpi.com/2073-4409/4/2/202 |
| article html file updated | 6 May 2019 19:26 CEST | Update | - |
| article html file updated | 26 March 2019 03:15 CET | Update | - |
| article html file updated | 27 October 2017 09:17 CEST | Update | - |
| article html file updated | 21 August 2015 12:32 CEST | Update | - |
| article html file updated | 7 July 2015 10:59 CEST | Update | - |
| article xml file uploaded | 7 July 2015 10:59 CEST | Update | https://www.mdpi.com/2073-4409/4/2/202/xml |
| article html file updated | 29 May 2015 12:03 CEST | Original file | - |
| article xml file uploaded | 29 May 2015 12:03 CEST | Original file | - |
| article pdf uploaded. | 27 May 2015 10:19 CEST | Updated version of record | https://www.mdpi.com/2073-4409/4/2/202/pdf |
| article pdf uploaded. | 22 May 2015 13:36 CEST | Version of Record | https://www.mdpi.com/2073-4409/4/2/202/pdf-vor |
