| article html file updated | 29 August 2025 22:36 CEST | Update | https://www.mdpi.com/1996-1944/9/1/55 |
| article html file updated | 16 July 2022 01:37 CEST | Update | N/A |
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| article html file updated | 26 March 2019 18:40 CET | Original file | N/A |
| article pdf uploaded. | 18 January 2016 08:56 CET | Version of Record | https://www.mdpi.com/1996-1944/9/1/55/pdf |
| article xml uploaded. | 18 January 2016 08:56 CET | Original file | https://www.mdpi.com/1996-1944/9/1/55/xml |
