| article html file updated | 5 February 2020 18:17 CET | Update | https://www.mdpi.com/1424-8247/4/10/1293 |
| article html file updated | 8 May 2019 22:47 CEST | Update | - |
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| article html file updated | 29 June 2017 13:17 CEST | Update | - |
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| article xml file uploaded | 17 June 2014 04:42 CEST | Original file | https://www.mdpi.com/1424-8247/4/10/1293/xml |
| article html file updated | 6 February 2013 22:53 CET | Update | - |
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| article html file updated | 26 January 2013 05:23 CET | Update | - |
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