| article html file updated | 5 February 2020 09:16 CET | Update | https://www.mdpi.com/1420-3049/10/6/640 |
| article html file updated | 9 May 2019 17:39 CEST | Update | - |
| article html file updated | 25 March 2019 04:51 CET | Update | - |
| article html file updated | 22 March 2019 05:13 CET | Update | - |
| article html file updated | 19 March 2019 11:42 CET | Update | - |
| article html file updated | 29 August 2018 11:36 CEST | Update | - |
| article html file updated | 24 July 2017 05:43 CEST | Update | - |
| article html file updated | 24 July 2017 05:43 CEST | Update | - |
| article html file updated | 24 July 2017 05:42 CEST | Original file | - |
| article xml uploaded. | 24 July 2017 05:41 CEST | Original file | https://www.mdpi.com/1420-3049/10/6/640/xml |