| article html file updated | 7 February 2020 15:59 CET | Update | https://www.mdpi.com/1996-1944/9/10/820 |
| article html file updated | 5 May 2019 02:19 CEST | Update | N/A |
| article html file updated | 27 October 2016 11:40 CEST | Update | N/A |
| article html file updated | 12 October 2016 10:37 CEST | Original file | N/A |
| article xml uploaded. | 12 October 2016 10:35 CEST | Update | https://www.mdpi.com/1996-1944/9/10/820/xml |
| article xml uploaded. | 12 October 2016 10:35 CEST | Original file | N/A |
| article pdf uploaded. | 12 October 2016 10:35 CEST | Updated version of record | https://www.mdpi.com/1996-1944/9/10/820/pdf |
| article pdf uploaded. | 5 October 2016 09:43 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/10/820/pdf-vor |
