| article html file updated | 7 February 2020 04:13 CET | Update | https://new.mdpi.com/2076-2607/4/1/11 |
| article html file updated | 21 September 2019 10:53 CEST | Update | - |
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| article pdf uploaded. | 4 February 2016 09:25 CET | Version of Record | https://new.mdpi.com/2076-2607/4/1/11/pdf |
| article xml uploaded. | 4 February 2016 09:25 CET | Original file | https://new.mdpi.com/2076-2607/4/1/11/xml |
