| article html file updated | 7 February 2020 10:14 CET | Update | https://www.mdpi.com/2073-4360/8/6/233 |
| article html file updated | 21 September 2019 19:07 CEST | Update | - |
| article html file updated | 5 May 2019 12:49 CEST | Update | - |
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| article html file updated | 29 June 2016 11:42 CEST | Update | - |
| article html file updated | 15 June 2016 13:22 CEST | Original file | - |
| article xml uploaded. | 15 June 2016 13:20 CEST | Original file | https://www.mdpi.com/2073-4360/8/6/233/xml |
| article pdf uploaded. | 15 June 2016 13:20 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/6/233/pdf |
