| article html file updated | 29 August 2025 23:08 CEST | Update | https://www.mdpi.com/1996-1073/9/6/407 |
| article html file updated | 16 July 2022 02:28 CEST | Update | N/A |
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| article html file updated | 25 May 2016 09:10 CEST | Original file | N/A |
| article xml uploaded. | 25 May 2016 09:08 CEST | Original file | https://www.mdpi.com/1996-1073/9/6/407/xml |
| article pdf uploaded. | 25 May 2016 09:08 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/6/407/pdf |
