| article html file updated | 7 February 2020 08:33 CET | Update | https://www.mdpi.com/2073-4409/5/2/23 |
| article html file updated | 5 May 2019 16:05 CEST | Update | N/A |
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| article xml uploaded. | 12 May 2016 09:57 CEST | Original file | https://www.mdpi.com/2073-4409/5/2/23/xml |
| article pdf uploaded. | 12 May 2016 09:57 CEST | Version of Record | https://www.mdpi.com/2073-4409/5/2/23/pdf |
