| article html file updated | 16 August 2026 23:51 CEST | Update | https://www.mdpi.com/1648-9144/56/1/31 |
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| article html file updated | 21 January 2020 07:48 CET | Original file | N/A |
| article pdf uploaded. | 21 January 2020 07:47 CET | Updated version of record | https://www.mdpi.com/1648-9144/56/1/31/pdf |
| article xml uploaded. | 21 January 2020 07:47 CET | Update | https://www.mdpi.com/1648-9144/56/1/31/xml |
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| article pdf uploaded. | 13 January 2020 17:14 CET | Version of Record | https://www.mdpi.com/1648-9144/56/1/31/pdf-vor |
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