| article html file updated | 7 February 2020 06:55 CET | Update | https://www.mdpi.com/2071-1050/8/4/339 |
| article html file updated | 12 September 2019 07:31 CEST | Update | - |
| article html file updated | 12 September 2019 07:12 CEST | Update | - |
| article html file updated | 12 September 2019 05:22 CEST | Update | - |
| article html file updated | 5 May 2019 19:23 CEST | Update | - |
| article html file updated | 27 March 2019 01:13 CET | Update | - |
| article html file updated | 29 April 2016 05:51 CEST | Update | - |
| article html file updated | 7 April 2016 09:45 CEST | Original file | - |
| article xml uploaded. | 7 April 2016 09:44 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/339/xml |
| article pdf uploaded. | 7 April 2016 09:44 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/339/pdf |
