| article html file updated | 6 February 2020 04:06 CET | Update | https://www.mdpi.com/1422-0067/14/9/17845 |
| article html file updated | 8 May 2019 01:02 CEST | Update | - |
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| article xml file uploaded | 31 October 2013 10:04 CET | Update | https://www.mdpi.com/1422-0067/14/9/17845/xml |
| article html file updated | 14 October 2013 12:33 CEST | Original file | - |
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| article pdf uploaded. | 30 August 2013 14:35 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/17845/pdf |