| article html file updated | 8 February 2020 09:45 CET | Update | https://www.mdpi.com/2072-6694/9/7/74 |
| article html file updated | 25 September 2019 16:16 CEST | Update | - |
| article html file updated | 3 May 2019 14:42 CEST | Update | - |
| article html file updated | 28 July 2017 11:04 CEST | Update | - |
| article html file updated | 30 June 2017 14:14 CEST | Original file | - |
| article xml uploaded. | 30 June 2017 14:13 CEST | Original file | https://www.mdpi.com/2072-6694/9/7/74/xml |
| article pdf uploaded. | 30 June 2017 14:13 CEST | Version of Record | https://www.mdpi.com/2072-6694/9/7/74/pdf |
