| article html file updated | 24 December 2025 17:40 CET | Update | https://www.mdpi.com/2304-8158/9/2/228 |
| article html file updated | 31 August 2025 12:19 CEST | Update | - |
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| article pdf uploaded. | 21 February 2020 12:01 CET | Version of Record | https://www.mdpi.com/2304-8158/9/2/228/pdf |
| article xml uploaded. | 21 February 2020 12:01 CET | Update | https://www.mdpi.com/2304-8158/9/2/228/xml |
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