| article html file updated | 8 February 2020 07:15 CET | Update | https://www.mdpi.com/2072-6643/9/6/561 |
| article html file updated | 3 May 2019 19:25 CEST | Update | - |
| article html file updated | 29 June 2017 11:42 CEST | Update | - |
| article html file updated | 2 June 2017 11:19 CEST | Update | - |
| article xml uploaded. | 2 June 2017 11:18 CEST | Update | https://www.mdpi.com/2072-6643/9/6/561/xml |
| article pdf uploaded. | 2 June 2017 11:18 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/6/561/pdf |
| article html file updated | 1 June 2017 14:26 CEST | Original file | - |
