| article html file updated | 29 August 2025 20:44 CEST | Update | https://www.mdpi.com/1996-1944/6/8/3420 |
| article html file updated | 15 July 2022 22:28 CEST | Update | N/A |
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| article html file updated | 17 February 2017 06:53 CET | Original file | N/A |
| article pdf uploaded. | 12 August 2013 09:52 CEST | Version of Record | https://www.mdpi.com/1996-1944/6/8/3420/pdf |
