| article html file updated | 8 February 2020 10:01 CET | Update | https://www.mdpi.com/2220-9964/6/7/202 |
| article html file updated | 25 September 2019 17:48 CEST | Update | - |
| article html file updated | 3 May 2019 14:11 CEST | Update | - |
| article html file updated | 31 July 2017 07:38 CEST | Update | - |
| article html file updated | 5 July 2017 10:23 CEST | Original file | - |
| article xml uploaded. | 5 July 2017 10:22 CEST | Original file | https://www.mdpi.com/2220-9964/6/7/202/xml |
| article pdf uploaded. | 5 July 2017 10:22 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/7/202/pdf |
| article pdf uploaded. | 4 July 2017 12:38 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/7/202/pdf-vor |
