| article html file updated | 5 February 2020 19:10 CET | Update | https://www.mdpi.com/1424-8247/5/1/94 |
| article html file updated | 8 May 2019 20:53 CEST | Update | - |
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| article html file updated | 6 August 2013 16:01 CEST | Update | - |
| article xml file uploaded | 6 August 2013 16:00 CEST | Original file | https://www.mdpi.com/1424-8247/5/1/94/xml |
| article html file updated | 7 February 2013 09:49 CET | Update | - |
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| article html file updated | 26 January 2013 07:35 CET | Update | - |
| article html file updated | 23 January 2013 07:59 CET | Original file | - |
