| article html file updated | 30 August 2025 08:20 CEST | Update | https://www.mdpi.com/2410-390X/2/4/22 |
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| article html file updated | 31 October 2018 11:12 CET | Original file | - |
| article xml uploaded. | 31 October 2018 11:11 CET | Update | https://www.mdpi.com/2410-390X/2/4/22/xml |
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| article pdf uploaded. | 31 October 2018 11:00 CET | Version of Record | https://www.mdpi.com/2410-390X/2/4/22/pdf |
| article xml uploaded. | 31 October 2018 11:00 CET | Update | - |
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