| article html file updated | 31 August 2025 22:22 CEST | Update | https://www.mdpi.com/1424-2818/12/6/221 |
| article html file updated | 21 July 2022 06:46 CEST | Update | - |
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| article pdf uploaded. | 29 June 2020 11:46 CEST | Updated version of record | https://www.mdpi.com/1424-2818/12/6/221/pdf |
| article xml uploaded. | 29 June 2020 11:46 CEST | Update | https://www.mdpi.com/1424-2818/12/6/221/xml |
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| article pdf uploaded. | 2 June 2020 11:08 CEST | Version of Record | https://www.mdpi.com/1424-2818/12/6/221/pdf-vor |
