| article html file updated | 12 August 2026 20:40 CEST | Update | https://www.mdpi.com/1999-4915/5/10/2561 |
| article html file updated | 6 February 2020 05:02 CET | Update | N/A |
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| article xml file uploaded | 1 November 2013 13:56 CET | Original file | https://www.mdpi.com/1999-4915/5/10/2561/xml |
| article pdf uploaded. | 23 October 2013 16:21 CEST | Updated version of record | https://www.mdpi.com/1999-4915/5/10/2561/pdf |
| article pdf uploaded. | 22 October 2013 09:27 CEST | Version of Record | https://www.mdpi.com/1999-4915/5/10/2561/pdf-vor |
