| article html file updated | 6 February 2020 01:05 CET | Update | https://www.mdpi.com/1422-0067/14/3/6241 |
| article html file updated | 8 May 2019 07:12 CEST | Update | - |
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| article html file updated | 21 May 2013 09:22 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:22 CEST | Update | https://www.mdpi.com/1422-0067/14/3/6241/xml |
| article html file updated | 18 April 2013 14:09 CEST | Update | - |
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| article html file updated | 9 April 2013 16:38 CEST | Original file | - |
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| article pdf uploaded. | 19 March 2013 09:49 CET | Version of Record | https://www.mdpi.com/1422-0067/14/3/6241/pdf |