| article html file updated | 6 February 2020 09:38 CET | Update | https://www.mdpi.com/1420-3049/19/6/7072 |
| article html file updated | 20 September 2019 08:47 CEST | Update | - |
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| article xml file uploaded | 4 July 2014 12:04 CEST | Update | https://www.mdpi.com/1420-3049/19/6/7072/xml |
| article html file updated | 3 July 2014 09:05 CEST | Original file | - |
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| article pdf uploaded. | 30 May 2014 11:18 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/6/7072/pdf |