| article html file updated | 7 December 2020 05:35 CET | Update | https://www.mdpi.com/1424-8220/19/13/2997 |
| article html file updated | 7 December 2020 04:36 CET | Update | - |
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| article html file updated | 17 July 2019 12:26 CEST | Update | - |
| article html file updated | 9 July 2019 06:04 CEST | Original file | - |
| article pdf uploaded. | 9 July 2019 06:03 CEST | Updated version of record | https://www.mdpi.com/1424-8220/19/13/2997/pdf |
| article xml uploaded. | 9 July 2019 06:03 CEST | Update | https://www.mdpi.com/1424-8220/19/13/2997/xml |
| article xml file uploaded | 9 July 2019 06:03 CEST | Update | - |
| article xml file uploaded | 7 July 2019 11:03 CEST | Original file | - |
| article pdf uploaded. | 7 July 2019 11:03 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/13/2997/pdf-vor |
