| article html file updated | 30 August 2025 21:19 CEST | Update | https://www.mdpi.com/2218-6581/8/2/47 |
| article html file updated | 20 July 2022 15:23 CEST | Update | - |
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| article pdf uploaded. | 18 June 2019 15:02 CEST | Version of Record | https://www.mdpi.com/2218-6581/8/2/47/pdf |
| article xml uploaded. | 18 June 2019 15:02 CEST | Update | https://www.mdpi.com/2218-6581/8/2/47/xml |
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