| article html file updated | 7 February 2020 18:48 CET | Update | https://www.mdpi.com/1424-8220/16/12/2020 |
| article html file updated | 4 May 2019 20:57 CEST | Update | - |
| article html file updated | 27 December 2016 12:44 CET | Update | - |
| article html file updated | 1 December 2016 12:21 CET | Update | - |
| article xml uploaded. | 1 December 2016 12:20 CET | Update | https://www.mdpi.com/1424-8220/16/12/2020/xml |
| article xml uploaded. | 1 December 2016 12:20 CET | Update | - |
| article pdf uploaded. | 1 December 2016 12:20 CET | Updated version of record | https://www.mdpi.com/1424-8220/16/12/2020/pdf |
| article html file updated | 29 November 2016 13:29 CET | Original file | - |
| article xml uploaded. | 29 November 2016 13:28 CET | Update | - |
| article xml uploaded. | 29 November 2016 13:28 CET | Update | - |
| article xml uploaded. | 29 November 2016 13:28 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 13:28 CET | Version of Record | https://www.mdpi.com/1424-8220/16/12/2020/pdf-vor |
