| article html file updated | 31 August 2025 05:55 CEST | Update | https://www.mdpi.com/2218-6581/8/4/100 |
| article html file updated | 19 July 2022 22:19 CEST | Update | - |
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| article html file updated | 31 December 2019 00:59 CET | Update | - |
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| article pdf uploaded. | 14 December 2019 06:13 CET | Updated version of record | https://www.mdpi.com/2218-6581/8/4/100/pdf |
| article xml uploaded. | 14 December 2019 06:13 CET | Update | https://www.mdpi.com/2218-6581/8/4/100/xml |
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| article pdf uploaded. | 6 December 2019 12:07 CET | Version of Record | https://www.mdpi.com/2218-6581/8/4/100/pdf-vor |
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