| article html file updated | 16 August 2026 07:24 CEST | Update | https://www.mdpi.com/2073-4395/9/8/439 |
| article html file updated | 30 August 2025 23:41 CEST | Update | N/A |
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| article pdf uploaded. | 15 August 2019 11:22 CEST | Updated version of record | https://www.mdpi.com/2073-4395/9/8/439/pdf |
| article xml uploaded. | 15 August 2019 11:22 CEST | Update | https://www.mdpi.com/2073-4395/9/8/439/xml |
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| article pdf uploaded. | 8 August 2019 15:21 CEST | Version of Record | https://www.mdpi.com/2073-4395/9/8/439/pdf-vor |
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