| article html file updated | 9 February 2020 06:04 CET | Update | https://www.mdpi.com/1996-1073/11/2/406 |
| article html file updated | 30 September 2019 16:00 CEST | Update | - |
| article html file updated | 1 May 2019 19:43 CEST | Update | - |
| article html file updated | 17 April 2019 18:51 CEST | Update | - |
| article html file updated | 28 March 2019 22:08 CET | Update | - |
| article html file updated | 14 March 2018 16:17 CET | Update | - |
| article html file updated | 9 February 2018 17:32 CET | Original file | - |
| article xml uploaded. | 9 February 2018 17:31 CET | Update | https://www.mdpi.com/1996-1073/11/2/406/xml |
| article xml uploaded. | 9 February 2018 17:31 CET | Update | - |
| article xml uploaded. | 9 February 2018 17:31 CET | Original file | - |
| article pdf uploaded. | 9 February 2018 17:31 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/406/pdf |
