| article html file updated | 31 August 2025 03:13 CEST | Update | https://www.mdpi.com/2223-7747/8/10/431 |
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| article pdf uploaded. | 20 October 2019 10:45 CEST | Version of Record | https://www.mdpi.com/2223-7747/8/10/431/pdf |
| article xml uploaded. | 20 October 2019 10:45 CEST | Update | https://www.mdpi.com/2223-7747/8/10/431/xml |
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