| article html file updated | 6 February 2020 15:20 CET | Update | https://www.mdpi.com/1420-3049/20/1/1751 |
| article html file updated | 20 September 2019 17:10 CEST | Update | N/A |
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| article html file updated | 21 August 2015 06:11 CEST | Update | N/A |
| article html file updated | 27 January 2015 11:32 CET | Original file | N/A |
| article xml file uploaded | 27 January 2015 11:32 CET | Original file | https://www.mdpi.com/1420-3049/20/1/1751/xml |
| article pdf uploaded. | 20 January 2015 14:03 CET | Version of Record | https://www.mdpi.com/1420-3049/20/1/1751/pdf |
