| article html file updated | 29 August 2025 21:12 CEST | Update | https://www.mdpi.com/1999-4915/6/8/3271 |
| article html file updated | 15 July 2022 23:20 CEST | Update | - |
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| article xml file uploaded | 29 August 2014 03:21 CEST | Update | https://www.mdpi.com/1999-4915/6/8/3271/xml |
| article html file updated | 26 August 2014 03:46 CEST | Original file | - |
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| article pdf uploaded. | 25 August 2014 08:05 CEST | Updated version of record | https://www.mdpi.com/1999-4915/6/8/3271/pdf |
| article pdf uploaded. | 21 August 2014 12:12 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/8/3271/pdf-vor |
