| article html file updated | 6 February 2020 00:42 CET | Update | https://www.mdpi.com/1422-0067/14/3/4670 |
| article html file updated | 19 September 2019 18:15 CEST | Update | - |
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| article xml file uploaded | 21 May 2013 09:11 CEST | Update | https://www.mdpi.com/1422-0067/14/3/4670/xml |
| article html file updated | 18 April 2013 13:59 CEST | Update | - |
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| article html file updated | 9 April 2013 15:28 CEST | Original file | - |
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| article pdf uploaded. | 26 February 2013 13:41 CET | Version of Record | https://www.mdpi.com/1422-0067/14/3/4670/pdf |