| article html file updated | 12 February 2020 17:40 CET | Update | https://www.mdpi.com/2218-273X/9/6/216 |
| article html file updated | 4 July 2019 17:33 CEST | Update | - |
| article html file updated | 21 June 2019 05:30 CEST | Original file | - |
| article pdf uploaded. | 20 June 2019 10:32 CEST | Updated version of record | https://www.mdpi.com/2218-273X/9/6/216/pdf |
| article xml uploaded. | 20 June 2019 10:32 CEST | Update | https://www.mdpi.com/2218-273X/9/6/216/xml |
| article xml file uploaded | 20 June 2019 10:32 CEST | Update | - |
| article pdf uploaded. | 4 June 2019 16:39 CEST | Version of Record | https://www.mdpi.com/2218-273X/9/6/216/pdf-vor |
| article xml file uploaded | 4 June 2019 16:39 CEST | Original file | - |
