| article html file updated | 6 February 2020 14:41 CET | Update | https://www.mdpi.com/2072-666X/6/1/19 |
| article html file updated | 7 May 2019 03:29 CEST | Update | - |
| article html file updated | 25 March 2019 19:41 CET | Update | - |
| article html file updated | 21 August 2015 04:40 CEST | Update | - |
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| article xml file uploaded | 22 January 2015 10:32 CET | Original file | https://www.mdpi.com/2072-666X/6/1/19/xml |
| article pdf uploaded. | 23 December 2014 14:07 CET | Version of Record | https://www.mdpi.com/2072-666X/6/1/19/pdf |
