| article html file updated | 8 May 2020 11:04 CEST | Original file | https://www.mdpi.com/2076-0787/9/2/37 |
| article pdf uploaded. | 8 May 2020 11:03 CEST | Updated version of record | https://www.mdpi.com/2076-0787/9/2/37/pdf |
| article xml uploaded. | 8 May 2020 11:03 CEST | Update | https://www.mdpi.com/2076-0787/9/2/37/xml |
| article xml file uploaded | 8 May 2020 11:03 CEST | Update | - |
| article pdf uploaded. | 30 April 2020 15:55 CEST | Version of Record | https://www.mdpi.com/2076-0787/9/2/37/pdf-vor |
| article xml file uploaded | 30 April 2020 15:55 CEST | Original file | - |
