| article html file updated | 2 September 2025 07:21 CEST | Update | https://www.mdpi.com/2199-8531/7/2/135 |
| article html file updated | 26 July 2022 19:47 CEST | Update | N/A |
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| article pdf uploaded. | 18 May 2021 05:09 CEST | Updated version of record | https://www.mdpi.com/2199-8531/7/2/135/pdf |
| article xml uploaded. | 18 May 2021 05:09 CEST | Update | https://www.mdpi.com/2199-8531/7/2/135/xml |
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| article html file updated | 16 May 2021 11:56 CEST | Original file | N/A |
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| article xml file uploaded | 16 May 2021 11:55 CEST | Original file | N/A |
