| article html file updated | 31 August 2025 11:57 CEST | Update | https://www.mdpi.com/2227-7390/8/2/267 |
| article html file updated | 20 July 2022 20:28 CEST | Update | - |
| article html file updated | 6 March 2020 07:28 CET | Update | - |
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| article xml uploaded. | 18 February 2020 11:07 CET | Update | https://www.mdpi.com/2227-7390/8/2/267/xml |
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