| article html file updated | 30 August 2025 07:29 CEST | Update | https://www.mdpi.com/1911-8074/11/4/60 |
| article html file updated | 17 July 2022 04:07 CEST | Update | - |
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| article pdf uploaded. | 8 October 2018 19:41 CEST | Updated version of record | https://www.mdpi.com/1911-8074/11/4/60/pdf |
| article xml uploaded. | 8 October 2018 19:41 CEST | Update | https://www.mdpi.com/1911-8074/11/4/60/xml |
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| article pdf uploaded. | 3 October 2018 15:53 CEST | Updated version of record | https://www.mdpi.com/1911-8074/11/4/60/pdf-vor |
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| article xml file uploaded | 3 October 2018 15:45 CEST | Original file | - |
