| article html file updated | 6 February 2020 06:56 CET | Update | https://www.mdpi.com/2073-4409/1/4/951 |
| article html file updated | 20 September 2019 05:26 CEST | Update | - |
| article html file updated | 7 May 2019 19:23 CEST | Update | - |
| article html file updated | 21 March 2019 11:31 CET | Update | - |
| article html file updated | 29 June 2017 13:17 CEST | Update | - |
| article html file updated | 19 August 2015 18:41 CEST | Update | - |
| article html file updated | 14 August 2014 11:41 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/2073-4409/1/4/951/xml |
| article html file updated | 14 August 2014 11:21 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:21 CEST | Update | - |
| article html file updated | 17 February 2014 10:28 CET | Original file | - |
| article xml file uploaded | 17 February 2014 10:28 CET | Original file | - |
| article pdf uploaded. | 24 January 2014 17:51 CET | Version of Record | https://www.mdpi.com/2073-4409/1/4/951/pdf |
