| article html file updated | 6 February 2020 14:38 CET | Update | https://www.mdpi.com/1422-0067/15/12/23924 |
| article html file updated | 7 May 2019 03:38 CEST | Update | - |
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| article html file updated | 21 August 2015 04:31 CEST | Update | - |
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| article xml file uploaded | 6 January 2015 09:18 CET | Original file | https://www.mdpi.com/1422-0067/15/12/23924/xml |
| article pdf uploaded. | 22 December 2014 08:11 CET | Version of Record | https://www.mdpi.com/1422-0067/15/12/23924/pdf |
