| article html file updated | 31 August 2025 11:16 CEST | Update | https://www.mdpi.com/2227-7390/8/2/228 |
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| article html file updated | 6 March 2020 07:37 CET | Update | - |
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| article pdf uploaded. | 29 February 2020 13:24 CET | Updated version of record | https://www.mdpi.com/2227-7390/8/2/228/pdf |
| article xml uploaded. | 29 February 2020 13:24 CET | Update | https://www.mdpi.com/2227-7390/8/2/228/xml |
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| article pdf uploaded. | 10 February 2020 15:25 CET | Version of Record | https://www.mdpi.com/2227-7390/8/2/228/pdf-vor |
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