| article html file updated | 5 February 2020 18:09 CET | Update | https://www.mdpi.com/1422-0067/12/9/5871 |
| article html file updated | 19 September 2019 06:01 CEST | Update | - |
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| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/1422-0067/12/9/5871/xml |
| article html file updated | 6 February 2013 22:39 CET | Update | - |
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