| article html file updated | 5 February 2020 23:32 CET | Update | https://www.mdpi.com/1999-4915/4/12/3952 |
| article html file updated | 19 September 2019 15:57 CEST | Update | - |
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| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/1999-4915/4/12/3952/xml |
| article html file updated | 7 February 2013 17:34 CET | Update | - |
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