| article html file updated | 12 February 2020 06:20 CET | Update | https://www.mdpi.com/2227-9717/7/4/222 |
| article html file updated | 25 April 2019 10:03 CEST | Original file | - |
| article pdf uploaded. | 25 April 2019 10:01 CEST | Updated version of record | https://www.mdpi.com/2227-9717/7/4/222/pdf |
| article xml uploaded. | 25 April 2019 10:01 CEST | Update | https://www.mdpi.com/2227-9717/7/4/222/xml |
| article xml file uploaded | 25 April 2019 10:01 CEST | Update | - |
| article pdf uploaded. | 18 April 2019 16:54 CEST | Version of Record | https://www.mdpi.com/2227-9717/7/4/222/pdf-vor |
| article xml file uploaded | 18 April 2019 16:54 CEST | Original file | - |
