| article html file updated | 7 February 2020 10:16 CET | Update | https://www.mdpi.com/2073-4360/8/6/234 |
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| article xml uploaded. | 16 June 2016 12:53 CEST | Original file | https://www.mdpi.com/2073-4360/8/6/234/xml |
| article pdf uploaded. | 16 June 2016 12:53 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/6/234/pdf |