| article html file updated | 8 February 2020 21:42 CET | Update | https://www.mdpi.com/2071-1050/9/11/2139 |
| article html file updated | 28 September 2019 14:48 CEST | Update | N/A |
| article html file updated | 2 May 2019 13:51 CEST | Update | N/A |
| article html file updated | 18 April 2019 11:31 CEST | Update | N/A |
| article html file updated | 30 November 2017 13:30 CET | Update | N/A |
| article html file updated | 20 November 2017 11:41 CET | Original file | N/A |
| article xml uploaded. | 20 November 2017 11:40 CET | Update | https://www.mdpi.com/2071-1050/9/11/2139/xml |
| article xml uploaded. | 20 November 2017 11:40 CET | Original file | N/A |
| article pdf uploaded. | 20 November 2017 11:40 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/2139/pdf |
