| article html file updated | 24 December 2025 13:47 CET | Update | https://www.mdpi.com/2071-1050/7/2/1308 |
| article html file updated | 29 August 2025 21:29 CEST | Update | N/A |
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| article xml file uploaded | 15 February 2015 10:07 CET | Original file | https://www.mdpi.com/2071-1050/7/2/1308/xml |
| article pdf uploaded. | 29 January 2015 09:23 CET | Updated version of record | https://www.mdpi.com/2071-1050/7/2/1308/pdf |
| article pdf uploaded. | 27 January 2015 11:14 CET | Version of Record | https://www.mdpi.com/2071-1050/7/2/1308/pdf-vor |
