| article html file updated | 11 February 2020 18:13 CET | Update | https://www.mdpi.com/2079-6412/9/2/147 |
| article html file updated | 15 October 2019 13:30 CEST | Update | - |
| article html file updated | 26 April 2019 12:06 CEST | Update | - |
| article html file updated | 12 April 2019 07:35 CEST | Update | - |
| article html file updated | 4 April 2019 02:32 CEST | Update | - |
| article html file updated | 1 March 2019 13:41 CET | Update | - |
| article html file updated | 1 March 2019 11:30 CET | Update | - |
| article html file updated | 24 February 2019 05:26 CET | Original file | - |
| article pdf uploaded. | 24 February 2019 05:24 CET | Version of Record | https://www.mdpi.com/2079-6412/9/2/147/pdf |
| article xml uploaded. | 24 February 2019 05:24 CET | Update | https://www.mdpi.com/2079-6412/9/2/147/xml |
| article xml file uploaded | 24 February 2019 05:24 CET | Original file | - |