| article html file updated | 6 February 2020 02:30 CET | Update | https://www.mdpi.com/1422-0067/14/6/11963 |
| article html file updated | 8 May 2019 04:20 CEST | Update | - |
| article html file updated | 20 March 2019 23:28 CET | Update | - |
| article html file updated | 17 June 2015 10:01 CEST | Update | - |
| article html file updated | 30 July 2013 13:50 CEST | Update | - |
| article xml file uploaded | 30 July 2013 13:49 CEST | Update | https://www.mdpi.com/1422-0067/14/6/11963/xml |
| article html file updated | 19 July 2013 10:35 CEST | Original file | - |
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| article pdf uploaded. | 5 June 2013 14:51 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/6/11963/pdf |