| article html file updated | 30 August 2025 10:55 CEST | Update | https://www.mdpi.com/2076-0760/8/1/21 |
| article html file updated | 17 July 2022 22:23 CEST | Update | - |
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| article html file updated | 14 January 2019 04:38 CET | Original file | - |
| article pdf uploaded. | 14 January 2019 04:37 CET | Updated version of record | https://www.mdpi.com/2076-0760/8/1/21/pdf |
| article xml uploaded. | 14 January 2019 04:37 CET | Update | https://www.mdpi.com/2076-0760/8/1/21/xml |
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| article pdf uploaded. | 11 January 2019 16:27 CET | Updated version of record | https://www.mdpi.com/2076-0760/8/1/21/pdf-vor |
| article pdf uploaded. | 11 January 2019 16:19 CET | Version of Record | https://www.mdpi.com/2076-0760/8/1/21/pdf-vor |
| article xml file uploaded | 11 January 2019 16:19 CET | Original file | - |
