| article html file updated | 8 February 2020 10:32 CET | Update | https://www.mdpi.com/2220-9964/6/7/210 |
| article html file updated | 25 September 2019 20:16 CEST | Update | - |
| article html file updated | 3 May 2019 13:16 CEST | Update | - |
| article html file updated | 31 July 2017 07:40 CEST | Update | - |
| article html file updated | 8 July 2017 13:39 CEST | Original file | - |
| article xml uploaded. | 8 July 2017 13:38 CEST | Update | https://www.mdpi.com/2220-9964/6/7/210/xml |
| article pdf uploaded. | 8 July 2017 13:38 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/7/210/pdf |
