| article html file updated | 13 February 2020 06:03 CET | Update | https://www.mdpi.com/2199-8531/5/3/50 |
| article html file updated | 30 July 2019 13:35 CEST | Original file | - |
| article pdf uploaded. | 30 July 2019 13:34 CEST | Version of Record | https://www.mdpi.com/2199-8531/5/3/50/pdf |
| article xml uploaded. | 30 July 2019 13:34 CEST | Update | https://www.mdpi.com/2199-8531/5/3/50/xml |
| article xml file uploaded | 30 July 2019 13:34 CEST | Original file | - |
