| article html file updated | 15 August 2026 02:13 CEST | Update | https://www.mdpi.com/1424-8220/18/6/1688 |
| article html file updated | 9 February 2020 18:50 CET | Update | N/A |
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| article html file updated | 24 May 2018 08:46 CEST | Original file | N/A |
| article pdf uploaded. | 24 May 2018 08:45 CEST | Version of Record | https://www.mdpi.com/1424-8220/18/6/1688/pdf |
| article xml uploaded. | 24 May 2018 08:45 CEST | Update | https://www.mdpi.com/1424-8220/18/6/1688/xml |
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