| article html file updated | 14 February 2020 14:53 CET | Update | https://www.mdpi.com/2226-4310/6/12/131 |
| article html file updated | 30 December 2019 13:14 CET | Update | - |
| article html file updated | 18 December 2019 13:47 CET | Original file | - |
| article pdf uploaded. | 18 December 2019 13:45 CET | Updated version of record | https://www.mdpi.com/2226-4310/6/12/131/pdf |
| article xml uploaded. | 18 December 2019 13:45 CET | Update | https://www.mdpi.com/2226-4310/6/12/131/xml |
| article xml file uploaded | 18 December 2019 13:45 CET | Update | - |
| article pdf uploaded. | 1 December 2019 10:59 CET | Version of Record | https://www.mdpi.com/2226-4310/6/12/131/pdf-vor |
| article xml file uploaded | 1 December 2019 10:59 CET | Original file | - |
