| article html file updated | 12 August 2026 18:54 CEST | Update | https://www.mdpi.com/1424-8247/6/3/407 |
| article html file updated | 6 February 2020 01:08 CET | Update | N/A |
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| article pdf uploaded. | 22 March 2013 14:03 CET | Updated version of record | https://www.mdpi.com/1424-8247/6/3/407/pdf |
| article pdf uploaded. | 21 March 2013 14:08 CET | Version of Record | https://www.mdpi.com/1424-8247/6/3/407/pdf-vor |
