| article html file updated | 9 February 2020 12:28 CET | Update | https://www.mdpi.com/2077-1444/9/4/109 |
| article html file updated | 1 May 2019 06:13 CEST | Update | - |
| article html file updated | 17 April 2019 06:19 CEST | Update | - |
| article html file updated | 29 March 2019 12:34 CET | Update | - |
| article html file updated | 1 May 2018 05:18 CEST | Update | - |
| article html file updated | 4 April 2018 10:01 CEST | Original file | - |
| article pdf uploaded. | 4 April 2018 10:00 CEST | Version of Record | https://www.mdpi.com/2077-1444/9/4/109/pdf |
| article xml uploaded. | 4 April 2018 10:00 CEST | Update | https://www.mdpi.com/2077-1444/9/4/109/xml |
| article xml file uploaded | 4 April 2018 10:00 CEST | Original file | - |
