| article html file updated | 8 February 2020 18:15 CET | Update | https://www.mdpi.com/2225-1154/5/4/77 |
| article html file updated | 27 September 2019 17:00 CEST | Update | - |
| article html file updated | 2 May 2019 21:45 CEST | Update | - |
| article html file updated | 2 January 2018 13:40 CET | Update | - |
| article html file updated | 12 October 2017 15:00 CEST | Original file | - |
| article xml uploaded. | 12 October 2017 14:59 CEST | Original file | https://www.mdpi.com/2225-1154/5/4/77/xml |
| article pdf uploaded. | 12 October 2017 14:59 CEST | Version of Record | https://www.mdpi.com/2225-1154/5/4/77/pdf |
