| article html file updated | 7 February 2020 09:17 CET | Update | https://www.mdpi.com/2073-4441/8/6/223 |
| article html file updated | 5 May 2019 14:41 CEST | Update | - |
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| article html file updated | 29 June 2016 12:12 CEST | Update | - |
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| article xml uploaded. | 25 May 2016 13:28 CEST | Original file | https://www.mdpi.com/2073-4441/8/6/223/xml |
| article pdf uploaded. | 25 May 2016 13:28 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/6/223/pdf |
