| article html file updated | 30 August 2025 10:21 CEST | Update | https://www.mdpi.com/1996-1944/12/1/68 |
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| article html file updated | 25 December 2018 15:22 CET | Original file | N/A |
| article pdf uploaded. | 25 December 2018 15:21 CET | Version of Record | https://www.mdpi.com/1996-1944/12/1/68/pdf |
| article xml uploaded. | 25 December 2018 15:21 CET | Update | https://www.mdpi.com/1996-1944/12/1/68/xml |
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