| article html file updated | 30 August 2025 11:09 CEST | Update | https://www.mdpi.com/2227-9067/6/1/12 |
| article html file updated | 20 July 2022 16:49 CEST | Update | N/A |
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| article html file updated | 17 January 2019 11:40 CET | Original file | N/A |
| article pdf uploaded. | 17 January 2019 11:37 CET | Version of Record | https://www.mdpi.com/2227-9067/6/1/12/pdf |
| article xml uploaded. | 17 January 2019 11:37 CET | Update | https://www.mdpi.com/2227-9067/6/1/12/xml |
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