| article html file updated | 8 February 2020 20:56 CET | Update | https://www.mdpi.com/2073-4441/9/11/881 |
| article html file updated | 28 September 2019 09:49 CEST | Update | - |
| article html file updated | 2 May 2019 15:34 CEST | Update | - |
| article html file updated | 30 November 2017 15:21 CET | Update | - |
| article html file updated | 30 November 2017 08:10 CET | Update | - |
| article html file updated | 11 November 2017 10:17 CET | Original file | - |
| article xml uploaded. | 11 November 2017 10:16 CET | Original file | https://www.mdpi.com/2073-4441/9/11/881/xml |
| article pdf uploaded. | 11 November 2017 10:16 CET | Version of Record | https://www.mdpi.com/2073-4441/9/11/881/pdf |
