| article html file updated | 6 February 2020 13:56 CET | Update | https://www.mdpi.com/1420-3049/19/12/19557 |
| article html file updated | 20 September 2019 15:16 CEST | Update | - |
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| article html file updated | 4 January 2015 11:49 CET | Original file | - |
| article xml file uploaded | 4 January 2015 11:49 CET | Original file | https://www.mdpi.com/1420-3049/19/12/19557/xml |
| article pdf uploaded. | 26 November 2014 11:54 CET | Version of Record | https://www.mdpi.com/1420-3049/19/12/19557/pdf |
