| article html file updated | 8 February 2020 10:07 CET | Update | https://www.mdpi.com/1999-4915/9/7/171 |
| article html file updated | 25 September 2019 18:17 CEST | Update | - |
| article html file updated | 3 May 2019 13:59 CEST | Update | - |
| article html file updated | 2 August 2017 06:22 CEST | Update | - |
| article html file updated | 5 July 2017 11:01 CEST | Original file | - |
| article xml uploaded. | 5 July 2017 11:00 CEST | Original file | https://www.mdpi.com/1999-4915/9/7/171/xml |
| article pdf uploaded. | 5 July 2017 11:00 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/7/171/pdf |
