| article html file updated | 8 February 2020 19:53 CET | Update | https://www.mdpi.com/2071-1050/9/11/1979 |
| article html file updated | 28 September 2019 03:01 CEST | Update | - |
| article html file updated | 2 May 2019 17:58 CEST | Update | - |
| article html file updated | 30 November 2017 12:18 CET | Update | - |
| article html file updated | 30 October 2017 16:24 CET | Original file | - |
| article xml uploaded. | 30 October 2017 16:22 CET | Original file | https://www.mdpi.com/2071-1050/9/11/1979/xml |
| article pdf uploaded. | 30 October 2017 16:22 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/1979/pdf |
