| article html file updated | 7 February 2020 17:38 CET | Update | https://www.mdpi.com/1996-1944/9/11/901 |
| article html file updated | 4 May 2019 23:16 CEST | Update | N/A |
| article html file updated | 30 November 2016 05:45 CET | Update | N/A |
| article html file updated | 7 November 2016 12:14 CET | Original file | N/A |
| article xml uploaded. | 7 November 2016 12:13 CET | Update | https://www.mdpi.com/1996-1944/9/11/901/xml |
| article xml uploaded. | 7 November 2016 12:13 CET | Original file | N/A |
| article pdf uploaded. | 7 November 2016 12:13 CET | Version of Record | https://www.mdpi.com/1996-1944/9/11/901/pdf |
