| article html file updated | 9 February 2020 07:17 CET | Update | https://www.mdpi.com/1996-1073/11/2/459 |
| article html file updated | 30 September 2019 23:06 CEST | Update | - |
| article html file updated | 1 May 2019 17:04 CEST | Update | - |
| article html file updated | 17 April 2019 16:27 CEST | Update | - |
| article html file updated | 29 March 2019 00:41 CET | Update | - |
| article html file updated | 14 March 2018 16:29 CET | Update | - |
| article html file updated | 22 February 2018 16:04 CET | Original file | - |
| article xml uploaded. | 22 February 2018 16:03 CET | Update | https://www.mdpi.com/1996-1073/11/2/459/xml |
| article xml uploaded. | 22 February 2018 16:03 CET | Original file | - |
| article pdf uploaded. | 22 February 2018 16:03 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/459/pdf |
