| article html file updated | 31 August 2025 07:57 CEST | Update | https://www.mdpi.com/2218-6581/9/1/3 |
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| article html file updated | 14 February 2020 23:15 CET | Update | - |
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| article pdf uploaded. | 26 January 2020 11:37 CET | Updated version of record | https://www.mdpi.com/2218-6581/9/1/3/pdf |
| article xml uploaded. | 26 January 2020 11:37 CET | Update | https://www.mdpi.com/2218-6581/9/1/3/xml |
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| article pdf uploaded. | 1 January 2020 08:41 CET | Version of Record | https://www.mdpi.com/2218-6581/9/1/3/pdf-vor |
| article xml file uploaded | 1 January 2020 08:41 CET | Original file | - |
