| article html file updated | 6 February 2020 04:14 CET | Update | https://www.mdpi.com/1424-8247/6/9/1130 |
| article html file updated | 8 May 2019 00:46 CEST | Update | N/A |
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| article html file updated | 29 March 2016 12:24 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/1424-8247/6/9/1130/xml |
| article pdf uploaded. | 6 September 2013 14:07 CEST | Version of Record | https://www.mdpi.com/1424-8247/6/9/1130/pdf |
