| article html file updated | 14 February 2020 03:09 CET | Update | https://www.mdpi.com/2227-7102/9/4/260 |
| article html file updated | 25 October 2019 03:14 CEST | Original file | - |
| article pdf uploaded. | 25 October 2019 03:13 CEST | Updated version of record | https://www.mdpi.com/2227-7102/9/4/260/pdf |
| article xml uploaded. | 25 October 2019 03:13 CEST | Update | https://www.mdpi.com/2227-7102/9/4/260/xml |
| article xml file uploaded | 25 October 2019 03:12 CEST | Update | - |
| article pdf uploaded. | 23 October 2019 12:26 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/4/260/pdf-vor |
| article xml file uploaded | 23 October 2019 12:26 CEST | Original file | - |
