| article html file updated | 6 February 2020 05:49 CET | Update | https://www.mdpi.com/1422-0067/14/12/23341 |
| article html file updated | 7 May 2019 21:35 CEST | Update | - |
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| article html file updated | 19 August 2015 11:18 CEST | Update | - |
| article html file updated | 31 December 2013 09:17 CET | Original file | - |
| article xml file uploaded | 31 December 2013 09:16 CET | Original file | https://www.mdpi.com/1422-0067/14/12/23341/xml |
| article pdf uploaded. | 27 November 2013 14:35 CET | Version of Record | https://www.mdpi.com/1422-0067/14/12/23341/pdf |
