| article html file updated | 7 February 2020 18:25 CET | Update | https://www.mdpi.com/1996-1073/9/11/976 |
| article html file updated | 4 May 2019 21:45 CEST | Update | N/A |
| article html file updated | 30 November 2016 06:10 CET | Update | N/A |
| article html file updated | 22 November 2016 14:20 CET | Original file | N/A |
| article xml uploaded. | 22 November 2016 14:19 CET | Update | https://www.mdpi.com/1996-1073/9/11/976/xml |
| article xml uploaded. | 22 November 2016 14:19 CET | Original file | N/A |
| article pdf uploaded. | 22 November 2016 14:19 CET | Version of Record | https://www.mdpi.com/1996-1073/9/11/976/pdf |
