| article html file updated | 6 February 2020 13:26 CET | Update | https://www.mdpi.com/2072-6694/6/4/2243 |
| article html file updated | 7 May 2019 05:54 CEST | Update | - |
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| article html file updated | 21 August 2015 01:23 CEST | Update | - |
| article html file updated | 26 December 2014 11:27 CET | Original file | - |
| article xml file uploaded | 26 December 2014 11:27 CET | Original file | https://www.mdpi.com/2072-6694/6/4/2243/xml |
| article pdf uploaded. | 6 November 2014 14:35 CET | Version of Record | https://www.mdpi.com/2072-6694/6/4/2243/pdf |
