| article html file updated | 2 September 2025 02:52 CEST | Update | https://www.mdpi.com/2218-1997/7/4/90 |
| article html file updated | 25 July 2022 10:58 CEST | Update | - |
| article html file updated | 4 August 2021 10:37 CEST | Update | - |
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| article html file updated | 8 April 2021 05:09 CEST | Update | - |
| article pdf uploaded. | 8 April 2021 05:07 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/4/90/pdf |
| article xml uploaded. | 8 April 2021 05:07 CEST | Update | https://www.mdpi.com/2218-1997/7/4/90/xml |
| article xml file uploaded | 8 April 2021 05:07 CEST | Update | - |
| article html file updated | 7 April 2021 11:58 CEST | Original file | - |
| article pdf uploaded. | 7 April 2021 11:56 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/4/90/pdf-vor |
| article xml file uploaded | 7 April 2021 11:56 CEST | Original file | - |
| article pdf uploaded. | 6 April 2021 14:12 CEST | Version of Record | https://www.mdpi.com/2218-1997/7/4/90/pdf-vor |
