| article html file updated | 8 February 2020 07:53 CET | Update | https://www.mdpi.com/1660-4601/14/6/621 |
| article html file updated | 25 September 2019 06:21 CEST | Update | - |
| article html file updated | 3 May 2019 18:12 CEST | Update | - |
| article html file updated | 28 June 2017 13:12 CEST | Update | - |
| article html file updated | 9 June 2017 13:27 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 13:26 CEST | Original file | https://www.mdpi.com/1660-4601/14/6/621/xml |
| article pdf uploaded. | 9 June 2017 13:26 CEST | Version of Record | https://www.mdpi.com/1660-4601/14/6/621/pdf |
