| article html file updated | 9 February 2020 11:00 CET | Update | https://www.mdpi.com/2079-6412/8/4/117 |
| article html file updated | 1 May 2019 09:15 CEST | Update | - |
| article html file updated | 17 April 2019 09:09 CEST | Update | - |
| article html file updated | 29 March 2019 09:13 CET | Update | - |
| article html file updated | 1 May 2018 10:38 CEST | Update | - |
| article html file updated | 23 March 2018 13:33 CET | Original file | - |
| article xml uploaded. | 23 March 2018 13:32 CET | Update | https://www.mdpi.com/2079-6412/8/4/117/xml |
| article pdf uploaded. | 23 March 2018 13:32 CET | Version of Record | https://www.mdpi.com/2079-6412/8/4/117/pdf |
