| article html file updated | 6 February 2020 17:41 CET | Update | https://www.mdpi.com/1420-3049/20/4/6739 |
| article html file updated | 20 September 2019 20:12 CEST | Update | - |
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| article html file updated | 21 August 2015 10:33 CEST | Update | - |
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| article xml file uploaded | 15 May 2015 09:59 CEST | Original file | https://www.mdpi.com/1420-3049/20/4/6739/xml |
| article pdf uploaded. | 15 April 2015 13:50 CEST | Version of Record | https://www.mdpi.com/1420-3049/20/4/6739/pdf |
