| article html file updated | 12 February 2020 21:00 CET | Update | https://www.mdpi.com/2227-9091/7/2/69 |
| article html file updated | 22 October 2019 05:25 CEST | Update | - |
| article html file updated | 5 July 2019 07:23 CEST | Update | - |
| article html file updated | 20 June 2019 13:43 CEST | Original file | - |
| article pdf uploaded. | 20 June 2019 13:39 CEST | Version of Record | https://www.mdpi.com/2227-9091/7/2/69/pdf |
| article xml uploaded. | 20 June 2019 13:39 CEST | Update | https://www.mdpi.com/2227-9091/7/2/69/xml |
| article xml file uploaded | 20 June 2019 13:39 CEST | Original file | - |
