| article html file updated | 9 February 2020 14:41 CET | Update | https://www.mdpi.com/2077-1444/9/4/137 |
| article html file updated | 2 October 2019 19:55 CEST | Update | - |
| article html file updated | 1 May 2019 01:48 CEST | Update | - |
| article html file updated | 17 April 2019 02:22 CEST | Update | - |
| article html file updated | 29 March 2019 17:41 CET | Update | - |
| article html file updated | 1 May 2018 05:20 CEST | Update | - |
| article html file updated | 20 April 2018 14:02 CEST | Original file | - |
| article pdf uploaded. | 20 April 2018 14:01 CEST | Version of Record | https://www.mdpi.com/2077-1444/9/4/137/pdf |
| article xml uploaded. | 20 April 2018 14:01 CEST | Update | https://www.mdpi.com/2077-1444/9/4/137/xml |
| article xml file uploaded | 20 April 2018 14:01 CEST | Original file | - |
