| article html file updated | 1 September 2025 22:52 CEST | Update | https://www.mdpi.com/2227-9709/8/1/13 |
| article html file updated | 25 July 2022 05:09 CEST | Update | - |
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| article pdf uploaded. | 26 February 2021 11:09 CET | Updated version of record | https://www.mdpi.com/2227-9709/8/1/13/pdf |
| article xml uploaded. | 26 February 2021 11:09 CET | Update | https://www.mdpi.com/2227-9709/8/1/13/xml |
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| article html file updated | 26 February 2021 09:20 CET | Original file | - |
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