| article html file updated | 17 August 2026 02:56 CEST | Update | https://www.mdpi.com/2071-1050/12/4/1420 |
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| article pdf uploaded. | 14 February 2020 14:09 CET | Updated version of record | https://www.mdpi.com/2071-1050/12/4/1420/pdf |
| article xml uploaded. | 14 February 2020 14:08 CET | Update | https://www.mdpi.com/2071-1050/12/4/1420/xml |
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