| article html file updated | 14 August 2026 21:11 CEST | Update | https://www.mdpi.com/1996-1073/11/1/220 |
| article html file updated | 30 August 2025 02:17 CEST | Update | N/A |
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| article xml uploaded. | 17 January 2018 15:05 CET | Update | https://www.mdpi.com/1996-1073/11/1/220/xml |
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| article pdf uploaded. | 17 January 2018 15:05 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/220/pdf |
