| article html file updated | 12 February 2020 16:42 CET | Update | https://www.mdpi.com/2073-4395/9/6/281 |
| article html file updated | 21 October 2019 02:31 CEST | Update | - |
| article html file updated | 5 July 2019 15:51 CEST | Update | - |
| article html file updated | 31 May 2019 12:22 CEST | Original file | - |
| article pdf uploaded. | 31 May 2019 12:21 CEST | Version of Record | https://www.mdpi.com/2073-4395/9/6/281/pdf |
| article xml uploaded. | 31 May 2019 12:21 CEST | Update | https://www.mdpi.com/2073-4395/9/6/281/xml |
| article xml file uploaded | 31 May 2019 12:21 CEST | Original file | - |
