| article html file updated | 8 February 2020 14:48 CET | Update | https://www.mdpi.com/2071-1050/9/9/1540 |
| article html file updated | 26 September 2019 20:04 CEST | Update | N/A |
| article html file updated | 3 May 2019 04:32 CEST | Update | N/A |
| article html file updated | 30 September 2017 13:27 CEST | Update | N/A |
| article html file updated | 30 August 2017 11:35 CEST | Original file | N/A |
| article xml uploaded. | 30 August 2017 11:34 CEST | Update | https://www.mdpi.com/2071-1050/9/9/1540/xml |
| article xml uploaded. | 30 August 2017 11:34 CEST | Original file | N/A |
| article pdf uploaded. | 30 August 2017 11:34 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/9/1540/pdf |
| article pdf uploaded. | 29 August 2017 15:07 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/9/1540/pdf-vor |
