| article html file updated | 1 September 2025 13:56 CEST | Update | https://www.mdpi.com/2227-9032/8/4/501 |
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| article pdf uploaded. | 20 November 2020 09:38 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/4/501/pdf |
| article xml uploaded. | 20 November 2020 09:38 CET | Update | https://www.mdpi.com/2227-9032/8/4/501/xml |
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| article html file updated | 20 November 2020 08:20 CET | Original file | - |
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