| article html file updated | 1 September 2025 16:52 CEST | Update | https://www.mdpi.com/2311-5521/6/1/4 |
| article html file updated | 23 July 2022 06:57 CEST | Update | - |
| article html file updated | 13 January 2021 02:19 CET | Update | - |
| article pdf uploaded. | 13 January 2021 02:17 CET | Updated version of record | https://www.mdpi.com/2311-5521/6/1/4/pdf |
| article xml uploaded. | 13 January 2021 02:17 CET | Update | https://www.mdpi.com/2311-5521/6/1/4/xml |
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| article html file updated | 24 December 2020 08:49 CET | Original file | - |
| article pdf uploaded. | 24 December 2020 08:47 CET | Version of Record | https://www.mdpi.com/2311-5521/6/1/4/pdf-vor |
| article xml uploaded. | 24 December 2020 08:47 CET | Update | - |
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