| article html file updated | 30 August 2025 11:16 CEST | Update | https://www.mdpi.com/2218-1997/5/1/39 |
| article html file updated | 18 July 2022 00:25 CEST | Update | - |
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| article html file updated | 24 January 2019 02:48 CET | Original file | - |
| article pdf uploaded. | 24 January 2019 02:47 CET | Updated version of record | https://www.mdpi.com/2218-1997/5/1/39/pdf |
| article xml uploaded. | 24 January 2019 02:47 CET | Update | https://www.mdpi.com/2218-1997/5/1/39/xml |
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| article pdf uploaded. | 20 January 2019 11:09 CET | Version of Record | https://www.mdpi.com/2218-1997/5/1/39/pdf-vor |
| article xml uploaded. | 20 January 2019 11:09 CET | Update | - |
| article xml file uploaded | 20 January 2019 11:09 CET | Original file | - |
