| article html file updated | 31 August 2025 03:46 CEST | Update | https://www.mdpi.com/1424-8220/19/21/4720 |
| article html file updated | 20 July 2022 00:36 CEST | Update | - |
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| article html file updated | 15 November 2019 13:58 CET | Update | - |
| article html file updated | 6 November 2019 07:56 CET | Original file | - |
| article pdf uploaded. | 6 November 2019 07:54 CET | Updated version of record | https://www.mdpi.com/1424-8220/19/21/4720/pdf |
| article xml uploaded. | 6 November 2019 07:54 CET | Update | https://www.mdpi.com/1424-8220/19/21/4720/xml |
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| article pdf uploaded. | 30 October 2019 16:10 CET | Version of Record | https://www.mdpi.com/1424-8220/19/21/4720/pdf-vor |
| article xml file uploaded | 30 October 2019 16:10 CET | Original file | - |
