| article html file updated | 17 August 2026 04:29 CEST | Update | https://www.mdpi.com/2223-7747/9/3/301 |
| article html file updated | 24 December 2025 17:47 CET | Update | N/A |
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| article pdf uploaded. | 1 March 2020 11:14 CET | Version of Record | https://www.mdpi.com/2223-7747/9/3/301/pdf |
| article xml uploaded. | 1 March 2020 11:14 CET | Update | https://www.mdpi.com/2223-7747/9/3/301/xml |
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