| article html file updated | 14 February 2020 06:00 CET | Update | https://www.mdpi.com/2076-0787/8/4/173 |
| article html file updated | 1 November 2019 13:28 CET | Original file | - |
| article pdf uploaded. | 1 November 2019 12:21 CET | Version of Record | https://www.mdpi.com/2076-0787/8/4/173/pdf |
| article xml uploaded. | 1 November 2019 12:21 CET | Update | https://www.mdpi.com/2076-0787/8/4/173/xml |
| article xml file uploaded | 1 November 2019 12:21 CET | Original file | - |
