| article html file updated | 8 February 2020 14:01 CET | Update | https://www.mdpi.com/2078-1547/8/2/22 |
| article html file updated | 3 May 2019 06:02 CEST | Update | - |
| article html file updated | 20 August 2017 10:45 CEST | Original file | - |
| article xml uploaded. | 20 August 2017 10:44 CEST | Original file | https://www.mdpi.com/2078-1547/8/2/22/xml |
| article pdf uploaded. | 20 August 2017 10:44 CEST | Version of Record | https://www.mdpi.com/2078-1547/8/2/22/pdf |
