| article html file updated | 12 February 2020 23:52 CET | Update | https://www.mdpi.com/1999-4923/11/7/311 |
| article html file updated | 31 July 2019 23:52 CEST | Update | N/A |
| article html file updated | 3 July 2019 09:32 CEST | Original file | N/A |
| article pdf uploaded. | 3 July 2019 09:31 CEST | Version of Record | https://www.mdpi.com/1999-4923/11/7/311/pdf |
| article xml uploaded. | 3 July 2019 09:31 CEST | Update | https://www.mdpi.com/1999-4923/11/7/311/xml |
| article xml file uploaded | 3 July 2019 09:31 CEST | Original file | N/A |
