| article html file updated | 14 August 2026 19:18 CEST | Update | https://www.mdpi.com/2071-1050/9/11/2131 |
| article html file updated | 8 February 2020 21:36 CET | Update | N/A |
| article html file updated | 28 September 2019 14:12 CEST | Update | N/A |
| article html file updated | 2 May 2019 14:03 CEST | Update | N/A |
| article html file updated | 18 April 2019 11:43 CEST | Update | N/A |
| article html file updated | 30 November 2017 13:26 CET | Update | N/A |
| article html file updated | 18 November 2017 13:05 CET | Original file | N/A |
| article xml uploaded. | 18 November 2017 13:03 CET | Update | https://www.mdpi.com/2071-1050/9/11/2131/xml |
| article xml uploaded. | 18 November 2017 13:03 CET | Original file | N/A |
| article pdf uploaded. | 18 November 2017 13:03 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/2131/pdf |
