| article html file updated | 21 March 2020 12:09 CET | Original file | https://www.mdpi.com/1996-1073/13/6/1489 |
| article pdf uploaded. | 21 March 2020 12:06 CET | Version of Record | https://www.mdpi.com/1996-1073/13/6/1489/pdf |
| article xml uploaded. | 21 March 2020 12:06 CET | Update | https://www.mdpi.com/1996-1073/13/6/1489/xml |
| article xml file uploaded | 21 March 2020 12:06 CET | Original file | - |
