| article html file updated | 31 August 2025 02:33 CEST | Update | https://www.mdpi.com/2312-7481/5/4/57 |
| article html file updated | 20 July 2022 02:03 CEST | Update | - |
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| article html file updated | 31 December 2019 19:49 CET | Update | - |
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| article pdf uploaded. | 11 October 2019 17:35 CEST | Updated version of record | https://www.mdpi.com/2312-7481/5/4/57/pdf |
| article xml uploaded. | 11 October 2019 17:35 CEST | Update | https://www.mdpi.com/2312-7481/5/4/57/xml |
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| article pdf uploaded. | 8 October 2019 15:48 CEST | Version of Record | https://www.mdpi.com/2312-7481/5/4/57/pdf-vor |
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