| article html file updated | 31 August 2025 09:37 CEST | Update | https://www.mdpi.com/2076-3921/9/2/90 |
| article html file updated | 20 July 2022 18:09 CEST | Update | - |
| article html file updated | 6 March 2020 05:46 CET | Update | - |
| article html file updated | 15 February 2020 05:07 CET | Update | - |
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| article pdf uploaded. | 3 February 2020 08:02 CET | Updated version of record | https://www.mdpi.com/2076-3921/9/2/90/pdf |
| article xml uploaded. | 3 February 2020 08:02 CET | Update | https://www.mdpi.com/2076-3921/9/2/90/xml |
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| article pdf uploaded. | 21 January 2020 15:52 CET | Version of Record | https://www.mdpi.com/2076-3921/9/2/90/pdf-vor |
| article xml file uploaded | 21 January 2020 15:52 CET | Original file | - |
