| article html file updated | 8 February 2020 13:18 CET | Update | https://www.mdpi.com/2071-1050/9/8/1421 |
| article html file updated | 26 September 2019 11:48 CEST | Update | - |
| article html file updated | 3 May 2019 07:26 CEST | Update | - |
| article html file updated | 27 March 2019 20:20 CET | Update | - |
| article html file updated | 1 September 2017 06:23 CEST | Update | - |
| article html file updated | 13 August 2017 10:17 CEST | Original file | - |
| article xml uploaded. | 13 August 2017 10:16 CEST | Original file | https://www.mdpi.com/2071-1050/9/8/1421/xml |
| article pdf uploaded. | 13 August 2017 10:16 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/8/1421/pdf |
| article pdf uploaded. | 11 August 2017 10:25 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/8/1421/pdf-vor |
