| article html file updated | 8 February 2020 21:58 CET | Update | https://www.mdpi.com/1996-1073/10/12/1940 |
| article html file updated | 28 September 2019 16:33 CEST | Update | - |
| article html file updated | 2 May 2019 13:14 CEST | Update | - |
| article html file updated | 18 April 2019 10:54 CEST | Update | - |
| article html file updated | 2 January 2018 17:59 CET | Update | - |
| article html file updated | 23 November 2017 09:52 CET | Original file | - |
| article xml uploaded. | 23 November 2017 09:51 CET | Update | https://www.mdpi.com/1996-1073/10/12/1940/xml |
| article xml uploaded. | 23 November 2017 09:51 CET | Original file | - |
| article pdf uploaded. | 23 November 2017 09:51 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/1940/pdf |
