| article html file updated | 12 August 2026 20:42 CEST | Update | https://www.mdpi.com/1424-2818/5/4/767 |
| article html file updated | 6 February 2020 05:05 CET | Update | N/A |
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| article html file updated | 17 June 2015 14:10 CEST | Original file | N/A |
| article pdf uploaded. | 23 October 2013 14:43 CEST | Updated version of record | https://www.mdpi.com/1424-2818/5/4/767/pdf |
| article pdf uploaded. | 22 October 2013 17:19 CEST | Version of Record | https://www.mdpi.com/1424-2818/5/4/767/pdf-vor |
