| article html file updated | 9 February 2020 06:09 CET | Update | https://www.mdpi.com/2077-1444/9/2/54 |
| article html file updated | 1 May 2019 19:32 CEST | Update | - |
| article html file updated | 17 April 2019 18:41 CEST | Update | - |
| article html file updated | 28 March 2019 22:18 CET | Update | - |
| article html file updated | 14 March 2018 15:13 CET | Update | - |
| article html file updated | 12 February 2018 09:24 CET | Original file | - |
| article xml uploaded. | 12 February 2018 09:23 CET | Original file | https://www.mdpi.com/2077-1444/9/2/54/xml |
| article pdf uploaded. | 12 February 2018 09:23 CET | Updated version of record | https://www.mdpi.com/2077-1444/9/2/54/pdf |
| article pdf uploaded. | 9 February 2018 17:53 CET | Version of Record | https://www.mdpi.com/2077-1444/9/2/54/pdf-vor |
