| article html file updated | 8 February 2020 10:55 CET | Update | https://www.mdpi.com/1996-1073/10/7/993 |
| article html file updated | 25 September 2019 22:20 CEST | Update | - |
| article html file updated | 3 May 2019 12:32 CEST | Update | - |
| article html file updated | 31 July 2017 07:15 CEST | Update | - |
| article html file updated | 17 July 2017 08:21 CEST | Update | - |
| article html file updated | 17 July 2017 08:20 CEST | Update | - |
| article html file updated | 17 July 2017 08:20 CEST | Original file | - |
| article xml uploaded. | 17 July 2017 08:18 CEST | Update | https://www.mdpi.com/1996-1073/10/7/993/xml |
| article pdf uploaded. | 17 July 2017 08:18 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/7/993/pdf |
| article pdf uploaded. | 13 July 2017 13:15 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/993/pdf-vor |