| article html file updated | 31 August 2025 07:00 CEST | Update | https://www.mdpi.com/1422-0067/21/1/45 |
| article html file updated | 19 July 2022 21:16 CEST | Update | - |
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| article html file updated | 20 December 2019 17:33 CET | Original file | - |
| article pdf uploaded. | 20 December 2019 17:32 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/1/45/pdf |
| article xml uploaded. | 20 December 2019 17:32 CET | Update | https://www.mdpi.com/1422-0067/21/1/45/xml |
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| article pdf uploaded. | 19 December 2019 14:34 CET | Version of Record | https://www.mdpi.com/1422-0067/21/1/45/pdf-vor |
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