| article html file updated | 8 February 2020 09:49 CET | Update | https://www.mdpi.com/2220-9964/6/7/197 |
| article html file updated | 25 September 2019 16:43 CEST | Update | - |
| article html file updated | 3 May 2019 14:33 CEST | Update | - |
| article html file updated | 31 July 2017 07:37 CEST | Update | - |
| article html file updated | 3 July 2017 11:41 CEST | Original file | - |
| article xml uploaded. | 3 July 2017 11:39 CEST | Update | https://www.mdpi.com/2220-9964/6/7/197/xml |
| article pdf uploaded. | 3 July 2017 11:39 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/7/197/pdf |
| article pdf uploaded. | 1 July 2017 12:27 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/7/197/pdf-vor |
