| article html file updated | 5 February 2020 21:08 CET | Update | https://www.mdpi.com/1424-8247/5/7/745 |
| article html file updated | 8 May 2019 16:34 CEST | Update | - |
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| article html file updated | 17 June 2015 00:58 CEST | Update | - |
| article html file updated | 6 August 2013 16:06 CEST | Update | - |
| article xml file uploaded | 6 August 2013 16:06 CEST | Original file | https://www.mdpi.com/1424-8247/5/7/745/xml |
| article html file updated | 7 February 2013 13:28 CET | Update | - |
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| article html file updated | 26 January 2013 11:58 CET | Update | - |
| article html file updated | 23 January 2013 21:44 CET | Original file | - |
