| article html file updated | 30 August 2025 08:06 CEST | Update | https://www.mdpi.com/2227-9709/5/4/39 |
| article html file updated | 17 July 2022 05:52 CEST | Update | - |
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| article pdf uploaded. | 25 October 2018 14:46 CEST | Updated version of record | https://www.mdpi.com/2227-9709/5/4/39/pdf |
| article xml uploaded. | 25 October 2018 14:46 CEST | Update | https://www.mdpi.com/2227-9709/5/4/39/xml |
| article xml file uploaded | 25 October 2018 14:46 CEST | Update | - |
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| article pdf uploaded. | 23 October 2018 16:23 CEST | Updated version of record | https://www.mdpi.com/2227-9709/5/4/39/pdf-vor |
| article pdf uploaded. | 23 October 2018 16:18 CEST | Version of Record | https://www.mdpi.com/2227-9709/5/4/39/pdf-vor |
| article xml file uploaded | 23 October 2018 16:18 CEST | Original file | - |
