| article html file updated | 12 February 2020 21:11 CET | Update | https://www.mdpi.com/2218-273X/9/6/241 |
| article html file updated | 22 October 2019 06:22 CEST | Update | - |
| article html file updated | 4 July 2019 17:38 CEST | Update | - |
| article html file updated | 21 June 2019 09:18 CEST | Original file | - |
| article pdf uploaded. | 21 June 2019 09:17 CEST | Version of Record | https://www.mdpi.com/2218-273X/9/6/241/pdf |
| article xml uploaded. | 21 June 2019 09:17 CEST | Update | https://www.mdpi.com/2218-273X/9/6/241/xml |
| article xml file uploaded | 21 June 2019 09:16 CEST | Original file | - |
