| article html file updated | 30 August 2025 14:01 CEST | Update | https://www.mdpi.com/1660-3397/17/4/228 |
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| article pdf uploaded. | 23 April 2019 12:10 CEST | Updated version of record | https://www.mdpi.com/1660-3397/17/4/228/pdf |
| article xml uploaded. | 23 April 2019 12:10 CEST | Update | https://www.mdpi.com/1660-3397/17/4/228/xml |
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| article pdf uploaded. | 15 April 2019 15:44 CEST | Version of Record | https://www.mdpi.com/1660-3397/17/4/228/pdf-vor |
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