| article html file updated | 14 February 2020 03:46 CET | Update | https://www.mdpi.com/2223-7747/8/11/447 |
| article html file updated | 27 November 2019 17:26 CET | Update | - |
| article html file updated | 31 October 2019 10:39 CET | Original file | - |
| article pdf uploaded. | 31 October 2019 10:37 CET | Updated version of record | https://www.mdpi.com/2223-7747/8/11/447/pdf |
| article xml uploaded. | 31 October 2019 10:37 CET | Update | https://www.mdpi.com/2223-7747/8/11/447/xml |
| article xml file uploaded | 31 October 2019 10:37 CET | Update | - |
| article pdf uploaded. | 24 October 2019 16:47 CEST | Version of Record | https://www.mdpi.com/2223-7747/8/11/447/pdf-vor |
| article xml file uploaded | 24 October 2019 16:47 CEST | Original file | - |
