| article html file updated | 12 August 2026 23:55 CEST | Update | https://www.mdpi.com/1999-4907/5/4/827 |
| article html file updated | 29 August 2025 21:02 CEST | Update | N/A |
| article html file updated | 15 July 2022 23:00 CEST | Update | N/A |
| article html file updated | 6 February 2020 08:47 CET | Update | N/A |
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| article html file updated | 20 August 2015 04:16 CEST | Update | N/A |
| article html file updated | 24 June 2014 12:08 CEST | Original file | N/A |
| article xml file uploaded | 24 June 2014 12:08 CEST | Original file | https://www.mdpi.com/1999-4907/5/4/827/xml |
| article pdf uploaded. | 23 April 2014 11:17 CEST | Updated version of record | https://www.mdpi.com/1999-4907/5/4/827/pdf |
| article pdf uploaded. | 22 April 2014 15:55 CEST | Version of Record | https://www.mdpi.com/1999-4907/5/4/827/pdf-vor |
