| article html file updated | 6 February 2020 18:20 CET | Update | https://www.mdpi.com/2077-1444/6/2/566 |
| article html file updated | 20 September 2019 20:59 CEST | Update | - |
| article html file updated | 6 May 2019 20:38 CEST | Update | - |
| article html file updated | 26 March 2019 01:59 CET | Update | - |
| article html file updated | 21 August 2015 11:39 CEST | Update | - |
| article html file updated | 1 July 2015 12:14 CEST | Original file | - |
| article xml file uploaded | 1 July 2015 12:14 CEST | Original file | https://www.mdpi.com/2077-1444/6/2/566/xml |
| article pdf uploaded. | 5 May 2015 14:20 CEST | Version of Record | https://www.mdpi.com/2077-1444/6/2/566/pdf |
