| article html file updated | 9 February 2020 01:09 CET | Update | https://www.mdpi.com/1996-1073/11/1/38 |
| article html file updated | 29 September 2019 11:24 CEST | Update | - |
| article html file updated | 2 May 2019 06:14 CEST | Update | - |
| article html file updated | 18 April 2019 04:12 CEST | Update | - |
| article html file updated | 28 March 2019 11:02 CET | Update | - |
| article html file updated | 1 February 2018 09:39 CET | Update | - |
| article html file updated | 25 December 2017 10:39 CET | Original file | - |
| article xml uploaded. | 25 December 2017 10:38 CET | Update | https://www.mdpi.com/1996-1073/11/1/38/xml |
| article xml uploaded. | 25 December 2017 10:38 CET | Original file | - |
| article pdf uploaded. | 25 December 2017 10:38 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/38/pdf |
