| article html file updated | 12 February 2020 09:57 CET | Update | https://www.mdpi.com/2227-9709/6/2/19 |
| article html file updated | 19 October 2019 13:19 CEST | Update | - |
| article html file updated | 5 July 2019 06:23 CEST | Update | - |
| article html file updated | 5 May 2019 11:56 CEST | Original file | - |
| article pdf uploaded. | 5 May 2019 11:55 CEST | Version of Record | https://www.mdpi.com/2227-9709/6/2/19/pdf |
| article xml uploaded. | 5 May 2019 11:55 CEST | Update | https://www.mdpi.com/2227-9709/6/2/19/xml |
| article xml file uploaded | 5 May 2019 11:55 CEST | Original file | - |
