| article html file updated | 9 February 2020 07:10 CET | Update | https://www.mdpi.com/1996-1073/11/2/454 |
| article html file updated | 30 September 2019 22:22 CEST | Update | - |
| article html file updated | 1 May 2019 17:19 CEST | Update | - |
| article html file updated | 17 April 2019 16:41 CEST | Update | - |
| article html file updated | 29 March 2019 00:26 CET | Update | - |
| article html file updated | 14 March 2018 16:28 CET | Update | - |
| article html file updated | 23 February 2018 12:50 CET | Original file | - |
| article xml uploaded. | 23 February 2018 12:48 CET | Original file | https://www.mdpi.com/1996-1073/11/2/454/xml |
| article pdf uploaded. | 23 February 2018 12:48 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/2/454/pdf |
| article pdf uploaded. | 21 February 2018 08:35 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/454/pdf-vor |
