| article html file updated | 7 February 2020 15:58 CET | Update | https://www.mdpi.com/2308-3417/1/4/24 |
| article html file updated | 22 September 2019 02:16 CEST | Update | - |
| article html file updated | 5 May 2019 02:19 CEST | Update | - |
| article html file updated | 9 October 2016 12:34 CEST | Original file | - |
| article xml uploaded. | 9 October 2016 12:33 CEST | Original file | https://www.mdpi.com/2308-3417/1/4/24/xml |
| article pdf uploaded. | 9 October 2016 12:33 CEST | Updated version of record | https://www.mdpi.com/2308-3417/1/4/24/pdf |
| article pdf uploaded. | 4 October 2016 15:59 CEST | Version of Record | - |
