| article html file updated | 12 February 2020 19:05 CET | Update | https://www.mdpi.com/2073-4344/9/6/519 |
| article html file updated | 21 October 2019 17:50 CEST | Update | - |
| article html file updated | 3 July 2019 15:56 CEST | Update | - |
| article html file updated | 12 June 2019 08:57 CEST | Original file | - |
| article pdf uploaded. | 12 June 2019 08:56 CEST | Version of Record | https://www.mdpi.com/2073-4344/9/6/519/pdf |
| article xml uploaded. | 12 June 2019 08:56 CEST | Update | https://www.mdpi.com/2073-4344/9/6/519/xml |
| article xml file uploaded | 12 June 2019 08:56 CEST | Original file | - |
