| article html file updated | 9 February 2020 04:55 CET | Update | https://www.mdpi.com/2079-9721/6/1/14 |
| article html file updated | 30 September 2019 08:54 CEST | Update | - |
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| article xml uploaded. | 30 January 2018 16:44 CET | Original file | https://www.mdpi.com/2079-9721/6/1/14/xml |
| article pdf uploaded. | 30 January 2018 16:44 CET | Version of Record | https://www.mdpi.com/2079-9721/6/1/14/pdf |