| article html file updated | 8 February 2020 16:36 CET | Update | https://www.mdpi.com/2227-9067/4/9/83 |
| article html file updated | 27 September 2019 05:49 CEST | Update | - |
| article html file updated | 3 May 2019 01:12 CEST | Update | - |
| article html file updated | 30 September 2017 10:17 CEST | Update | - |
| article html file updated | 19 September 2017 15:15 CEST | Original file | - |
| article xml uploaded. | 19 September 2017 15:14 CEST | Original file | https://www.mdpi.com/2227-9067/4/9/83/xml |
| article pdf uploaded. | 19 September 2017 15:14 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/9/83/pdf |
| article pdf uploaded. | 19 September 2017 13:14 CEST | Version of Record | - |
