| article html file updated | 12 February 2020 18:14 CET | Update | https://www.mdpi.com/2075-4701/9/6/664 |
| article html file updated | 21 October 2019 12:18 CEST | Update | - |
| article html file updated | 5 July 2019 20:47 CEST | Update | - |
| article html file updated | 7 June 2019 07:48 CEST | Original file | - |
| article pdf uploaded. | 7 June 2019 07:47 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/6/664/pdf |
| article xml uploaded. | 7 June 2019 07:47 CEST | Update | https://www.mdpi.com/2075-4701/9/6/664/xml |
| article xml file uploaded | 7 June 2019 07:47 CEST | Original file | - |
