| article html file updated | 7 February 2020 10:20 CET | Update | https://www.mdpi.com/1420-3049/21/6/789 |
| article html file updated | 21 September 2019 19:15 CEST | Update | - |
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| article xml uploaded. | 17 June 2016 09:30 CEST | Update | https://www.mdpi.com/1420-3049/21/6/789/xml |
| article pdf uploaded. | 17 June 2016 09:30 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/789/pdf |
