| article html file updated | 8 February 2020 06:18 CET | Update | https://www.mdpi.com/2227-9067/4/5/41 |
| article html file updated | 24 September 2019 22:11 CEST | Update | - |
| article html file updated | 3 May 2019 21:12 CEST | Update | - |
| article html file updated | 31 May 2017 06:35 CEST | Update | - |
| article html file updated | 23 May 2017 11:33 CEST | Original file | - |
| article xml uploaded. | 23 May 2017 11:32 CEST | Original file | https://www.mdpi.com/2227-9067/4/5/41/xml |
| article pdf uploaded. | 23 May 2017 11:32 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/5/41/pdf |
| article pdf uploaded. | 19 May 2017 13:23 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/5/41/pdf-vor |
