| article html file updated | 12 February 2020 06:34 CET | Update | https://www.mdpi.com/2227-9717/7/4/223 |
| article html file updated | 18 October 2019 16:26 CEST | Update | - |
| article html file updated | 25 April 2019 11:41 CEST | Original file | - |
| article pdf uploaded. | 25 April 2019 11:40 CEST | Updated version of record | https://www.mdpi.com/2227-9717/7/4/223/pdf |
| article xml uploaded. | 25 April 2019 11:40 CEST | Update | https://www.mdpi.com/2227-9717/7/4/223/xml |
| article xml file uploaded | 25 April 2019 11:40 CEST | Update | - |
| article pdf uploaded. | 19 April 2019 14:48 CEST | Version of Record | https://www.mdpi.com/2227-9717/7/4/223/pdf-vor |
| article xml file uploaded | 19 April 2019 14:48 CEST | Original file | - |
