| article html file updated | 8 February 2020 10:50 CET | Update | https://www.mdpi.com/2072-6694/9/7/90 |
| article html file updated | 25 September 2019 21:51 CEST | Update | - |
| article html file updated | 3 May 2019 12:41 CEST | Update | - |
| article html file updated | 28 July 2017 11:03 CEST | Update | - |
| article html file updated | 12 July 2017 14:29 CEST | Original file | - |
| article xml uploaded. | 12 July 2017 14:28 CEST | Original file | https://www.mdpi.com/2072-6694/9/7/90/xml |
| article pdf uploaded. | 12 July 2017 14:28 CEST | Version of Record | https://www.mdpi.com/2072-6694/9/7/90/pdf |
