| article html file updated | 12 February 2020 20:10 CET | Update | https://www.mdpi.com/2073-4344/9/6/538 |
| article html file updated | 22 October 2019 00:29 CEST | Update | - |
| article html file updated | 3 July 2019 16:10 CEST | Update | - |
| article html file updated | 17 June 2019 10:57 CEST | Original file | - |
| article pdf uploaded. | 17 June 2019 10:55 CEST | Version of Record | https://www.mdpi.com/2073-4344/9/6/538/pdf |
| article xml uploaded. | 17 June 2019 10:55 CEST | Update | https://www.mdpi.com/2073-4344/9/6/538/xml |
| article xml file uploaded | 17 June 2019 10:55 CEST | Original file | - |
