| article html file updated | 30 August 2025 04:15 CEST | Update | https://www.mdpi.com/1999-4907/9/6/319 |
| article html file updated | 16 July 2022 21:01 CEST | Update | - |
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| article pdf uploaded. | 3 June 2018 12:21 CEST | Updated version of record | https://www.mdpi.com/1999-4907/9/6/319/pdf |
| article xml uploaded. | 3 June 2018 12:20 CEST | Update | https://www.mdpi.com/1999-4907/9/6/319/xml |
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| article pdf uploaded. | 3 June 2018 10:36 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/6/319/pdf-vor |
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