| article html file updated | 15 August 2026 10:05 CEST | Update | https://www.mdpi.com/1911-8074/11/4/77 |
| article html file updated | 10 February 2020 19:15 CET | Update | N/A |
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| article pdf uploaded. | 20 November 2018 05:37 CET | Updated version of record | https://www.mdpi.com/1911-8074/11/4/77/pdf |
| article xml uploaded. | 20 November 2018 05:37 CET | Update | https://www.mdpi.com/1911-8074/11/4/77/xml |
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| article pdf uploaded. | 1 November 2018 16:17 CET | Updated version of record | https://www.mdpi.com/1911-8074/11/4/77/pdf-vor |
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