| article html file updated | 6 February 2020 06:37 CET | Update | https://www.mdpi.com/1420-3049/19/1/686 |
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| article html file updated | 14 August 2014 12:04 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 12:04 CEST | Original file | https://www.mdpi.com/1420-3049/19/1/686/xml |
| article pdf uploaded. | 7 January 2014 12:00 CET | Version of Record | https://www.mdpi.com/1420-3049/19/1/686/pdf |