| article html file updated | 6 February 2020 13:58 CET | Update | https://www.mdpi.com/2072-6694/6/4/2330 |
| article html file updated | 7 May 2019 04:53 CEST | Update | - |
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| article html file updated | 21 August 2015 02:47 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/2072-6694/6/4/2330/xml |
| article pdf uploaded. | 26 November 2014 16:29 CET | Version of Record | https://www.mdpi.com/2072-6694/6/4/2330/pdf |
