| article html file updated | 6 February 2020 04:48 CET | Update | https://www.mdpi.com/1424-8247/6/10/1304 |
| article html file updated | 20 September 2019 01:50 CEST | Update | N/A |
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| article html file updated | 5 November 2013 09:24 CET | Original file | N/A |
| article xml file uploaded | 5 November 2013 09:24 CET | Original file | https://www.mdpi.com/1424-8247/6/10/1304/xml |
| article pdf uploaded. | 11 October 2013 14:30 CEST | Version of Record | https://www.mdpi.com/1424-8247/6/10/1304/pdf |
