| article html file updated | 24 December 2025 18:21 CET | Update | https://www.mdpi.com/2223-7747/9/4/489 |
| article html file updated | 31 August 2025 17:06 CEST | Update | - |
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| article pdf uploaded. | 10 April 2020 16:59 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/489/pdf |
| article xml uploaded. | 10 April 2020 16:59 CEST | Update | https://www.mdpi.com/2223-7747/9/4/489/xml |
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