| article html file updated | 14 February 2020 03:22 CET | Update | https://www.mdpi.com/1996-1073/12/21/4039 |
| article html file updated | 15 November 2019 06:51 CET | Update | N/A |
| article html file updated | 24 October 2019 14:05 CEST | Original file | N/A |
| article pdf uploaded. | 24 October 2019 14:03 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4039/pdf |
| article xml uploaded. | 24 October 2019 14:03 CEST | Update | https://www.mdpi.com/1996-1073/12/21/4039/xml |
| article xml file uploaded | 24 October 2019 14:03 CEST | Update | N/A |
| article pdf uploaded. | 23 October 2019 17:01 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/21/4039/pdf-vor |
| article xml file uploaded | 23 October 2019 17:01 CEST | Original file | N/A |