| article html file updated | 11 February 2020 12:52 CET | Update | https://www.mdpi.com/2226-471X/4/1/6 |
| article html file updated | 26 April 2019 22:50 CEST | Update | - |
| article html file updated | 12 April 2019 18:40 CEST | Update | - |
| article html file updated | 3 April 2019 12:59 CEST | Update | - |
| article html file updated | 31 January 2019 14:32 CET | Original file | - |
| article pdf uploaded. | 31 January 2019 14:30 CET | Updated version of record | https://www.mdpi.com/2226-471X/4/1/6/pdf |
| article xml uploaded. | 31 January 2019 14:30 CET | Update | https://www.mdpi.com/2226-471X/4/1/6/xml |
| article xml file uploaded | 31 January 2019 14:30 CET | Update | - |
| article pdf uploaded. | 31 January 2019 14:23 CET | Version of Record | - |
| article xml uploaded. | 31 January 2019 14:23 CET | Update | - |
| article xml file uploaded | 31 January 2019 14:23 CET | Original file | - |
