| article html file updated | 7 February 2020 18:22 CET | Update | https://www.mdpi.com/2071-1050/8/11/1209 |
| article html file updated | 4 May 2019 21:50 CEST | Update | - |
| article html file updated | 2 December 2016 00:12 CET | Update | - |
| article html file updated | 22 November 2016 09:52 CET | Original file | - |
| article xml uploaded. | 22 November 2016 09:51 CET | Update | https://www.mdpi.com/2071-1050/8/11/1209/xml |
| article xml uploaded. | 22 November 2016 09:51 CET | Original file | - |
| article pdf uploaded. | 22 November 2016 09:51 CET | Version of Record | https://www.mdpi.com/2071-1050/8/11/1209/pdf |
