| article html file updated | 8 February 2020 23:44 CET | Update | https://www.mdpi.com/1996-1073/10/12/2106 |
| article html file updated | 29 September 2019 03:07 CEST | Update | - |
| article html file updated | 2 May 2019 09:20 CEST | Update | - |
| article html file updated | 18 April 2019 07:03 CEST | Update | - |
| article html file updated | 2 January 2018 19:59 CET | Update | - |
| article html file updated | 12 December 2017 04:39 CET | Original file | - |
| article xml uploaded. | 12 December 2017 04:38 CET | Update | https://www.mdpi.com/1996-1073/10/12/2106/xml |
| article xml uploaded. | 12 December 2017 04:38 CET | Original file | - |
| article pdf uploaded. | 12 December 2017 04:38 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/12/2106/pdf |
| article pdf uploaded. | 11 December 2017 11:54 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/2106/pdf-vor |