| article html file updated | 15 August 2026 17:58 CEST | Update | https://www.mdpi.com/2076-0825/8/1/20 |
| article html file updated | 11 February 2020 18:50 CET | Update | N/A |
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| article pdf uploaded. | 27 February 2019 09:04 CET | Version of Record | https://www.mdpi.com/2076-0825/8/1/20/pdf |
| article xml uploaded. | 27 February 2019 09:03 CET | Update | https://www.mdpi.com/2076-0825/8/1/20/xml |
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