| article html file updated | 30 August 2025 07:43 CEST | Update | https://www.mdpi.com/2075-4663/6/4/117 |
| article html file updated | 17 July 2022 04:43 CEST | Update | - |
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| article html file updated | 25 December 2018 04:17 CET | Update | - |
| article html file updated | 12 October 2018 06:32 CEST | Original file | - |
| article pdf uploaded. | 12 October 2018 06:31 CEST | Version of Record | https://www.mdpi.com/2075-4663/6/4/117/pdf |
| article xml uploaded. | 12 October 2018 06:31 CEST | Update | https://www.mdpi.com/2075-4663/6/4/117/xml |
| article xml file uploaded | 12 October 2018 06:31 CEST | Original file | - |
