| article html file updated | 29 August 2025 22:31 CEST | Update | https://www.mdpi.com/1999-4907/7/1/8 |
| article html file updated | 16 July 2022 01:30 CEST | Update | - |
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| article xml file uploaded | 28 December 2015 09:52 CET | Update | https://www.mdpi.com/1999-4907/7/1/8/xml |
| article pdf uploaded. | 28 December 2015 09:34 CET | Updated version of record | https://www.mdpi.com/1999-4907/7/1/8/pdf |
| article xml uploaded. | 28 December 2015 09:34 CET | Update | - |
| article pdf uploaded. | 25 December 2015 05:12 CET | Version of Record | https://www.mdpi.com/1999-4907/7/1/8/pdf-vor |
| article xml uploaded. | 25 December 2015 05:12 CET | Original file | - |
