| article html file updated | 5 February 2020 16:15 CET | Update | https://www.mdpi.com/1422-0067/12/1/24 |
| article html file updated | 9 May 2019 02:54 CEST | Update | - |
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| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/1422-0067/12/1/24/xml |
| article html file updated | 6 February 2013 19:18 CET | Update | - |
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