| article html file updated | 1 September 2025 16:55 CEST | Update | https://www.mdpi.com/1999-4907/12/1/15 |
| article html file updated | 23 July 2022 07:07 CEST | Update | - |
| article html file updated | 22 January 2021 07:43 CET | Update | - |
| article pdf uploaded. | 22 January 2021 07:42 CET | Updated version of record | https://www.mdpi.com/1999-4907/12/1/15/pdf |
| article xml uploaded. | 22 January 2021 07:42 CET | Update | https://www.mdpi.com/1999-4907/12/1/15/xml |
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| article html file updated | 26 December 2020 10:01 CET | Original file | - |
| article pdf uploaded. | 26 December 2020 09:59 CET | Updated version of record | https://www.mdpi.com/1999-4907/12/1/15/pdf-vor |
| article xml uploaded. | 26 December 2020 09:59 CET | Update | - |
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| article pdf uploaded. | 24 December 2020 13:35 CET | Version of Record | https://www.mdpi.com/1999-4907/12/1/15/pdf-vor |
