| article html file updated | 31 August 2025 05:04 CEST | Update | https://www.mdpi.com/2304-8158/8/12/612 |
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| article pdf uploaded. | 23 November 2019 10:39 CET | Version of Record | https://www.mdpi.com/2304-8158/8/12/612/pdf |
| article xml uploaded. | 23 November 2019 10:39 CET | Update | https://www.mdpi.com/2304-8158/8/12/612/xml |
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