| article html file updated | 8 February 2020 21:34 CET | Update | https://www.mdpi.com/2073-4441/9/11/899 |
| article html file updated | 28 September 2019 13:57 CEST | Update | N/A |
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| article xml uploaded. | 18 November 2017 10:02 CET | Update | https://www.mdpi.com/2073-4441/9/11/899/xml |
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| article pdf uploaded. | 18 November 2017 10:02 CET | Version of Record | https://www.mdpi.com/2073-4441/9/11/899/pdf |
