| article html file updated | 8 February 2020 19:47 CET | Update | https://www.mdpi.com/2071-1050/9/11/1976 |
| article html file updated | 28 September 2019 02:21 CEST | Update | - |
| article html file updated | 2 May 2019 18:13 CEST | Update | - |
| article html file updated | 30 November 2017 12:18 CET | Update | - |
| article html file updated | 29 October 2017 10:49 CET | Original file | - |
| article xml uploaded. | 29 October 2017 10:48 CET | Update | https://www.mdpi.com/2071-1050/9/11/1976/xml |
| article xml uploaded. | 29 October 2017 10:47 CET | Original file | - |
| article pdf uploaded. | 29 October 2017 10:47 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/1976/pdf |
