| article html file updated | 2 September 2025 02:20 CEST | Update | https://www.mdpi.com/2226-471X/6/2/64 |
| article html file updated | 25 July 2022 10:10 CEST | Update | - |
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| article pdf uploaded. | 2 April 2021 05:31 CEST | Updated version of record | https://www.mdpi.com/2226-471X/6/2/64/pdf |
| article xml uploaded. | 2 April 2021 05:31 CEST | Update | https://www.mdpi.com/2226-471X/6/2/64/xml |
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| article pdf uploaded. | 1 April 2021 02:31 CEST | Version of Record | https://www.mdpi.com/2226-471X/6/2/64/pdf-vor |
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