| article html file updated | 8 February 2020 11:01 CET | Update | https://www.mdpi.com/1999-4907/8/7/251 |
| article html file updated | 25 September 2019 22:50 CEST | Update | - |
| article html file updated | 3 May 2019 12:21 CEST | Update | - |
| article html file updated | 1 August 2017 08:45 CEST | Update | - |
| article html file updated | 17 July 2017 08:25 CEST | Update | - |
| article html file updated | 17 July 2017 08:24 CEST | Update | - |
| article html file updated | 17 July 2017 08:23 CEST | Original file | - |
| article xml uploaded. | 17 July 2017 08:22 CEST | Original file | https://www.mdpi.com/1999-4907/8/7/251/xml |
| article pdf uploaded. | 17 July 2017 08:22 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/7/251/pdf |
| article pdf uploaded. | 14 July 2017 13:10 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/7/251/pdf-vor |
