| article html file updated | 7 February 2020 10:48 CET | Update | https://www.mdpi.com/1420-3049/21/7/826 |
| article html file updated | 21 September 2019 19:52 CEST | Update | - |
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| article xml uploaded. | 25 June 2016 12:49 CEST | Update | https://www.mdpi.com/1420-3049/21/7/826/xml |
| article pdf uploaded. | 25 June 2016 12:49 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/7/826/pdf |
