| article html file updated | 9 February 2020 13:14 CET | Update | https://www.mdpi.com/1996-1073/11/4/880 |
| article html file updated | 2 October 2019 11:14 CEST | Update | - |
| article html file updated | 1 May 2019 04:39 CEST | Update | - |
| article html file updated | 17 April 2019 04:55 CEST | Update | - |
| article html file updated | 29 March 2019 14:20 CET | Update | - |
| article html file updated | 1 May 2018 09:17 CEST | Update | - |
| article html file updated | 10 April 2018 14:56 CEST | Original file | - |
| article xml uploaded. | 10 April 2018 14:55 CEST | Original file | https://www.mdpi.com/1996-1073/11/4/880/xml |
| article pdf uploaded. | 10 April 2018 14:55 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/880/pdf |
