| article html file updated | 6 February 2020 14:07 CET | Update | https://www.mdpi.com/1420-3049/19/12/20139 |
| article html file updated | 20 September 2019 15:35 CEST | Update | - |
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| article html file updated | 21 August 2015 03:11 CEST | Update | - |
| article html file updated | 4 January 2015 11:50 CET | Original file | - |
| article xml file uploaded | 4 January 2015 11:50 CET | Original file | https://www.mdpi.com/1420-3049/19/12/20139/xml |
| article pdf uploaded. | 2 December 2014 12:05 CET | Version of Record | https://www.mdpi.com/1420-3049/19/12/20139/pdf |
