| article html file updated | 7 February 2020 09:41 CET | Update | https://www.mdpi.com/2072-4292/8/6/468 |
| article html file updated | 5 May 2019 13:52 CEST | Update | - |
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| article html file updated | 1 July 2016 10:57 CEST | Update | - |
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| article xml uploaded. | 2 June 2016 15:10 CEST | Update | https://www.mdpi.com/2072-4292/8/6/468/xml |
| article pdf uploaded. | 2 June 2016 15:08 CEST | Version of Record | https://www.mdpi.com/2072-4292/8/6/468/pdf |
