| article html file updated | 1 April 2020 21:22 CEST | Update | https://www.mdpi.com/2297-8739/7/1/15 |
| article html file updated | 2 March 2020 13:20 CET | Original file | - |
| article pdf uploaded. | 2 March 2020 13:19 CET | Version of Record | https://www.mdpi.com/2297-8739/7/1/15/pdf |
| article xml uploaded. | 2 March 2020 13:19 CET | Update | https://www.mdpi.com/2297-8739/7/1/15/xml |
| article xml file uploaded | 2 March 2020 13:19 CET | Original file | - |
