| article html file updated | 7 February 2020 08:01 CET | Update | https://www.mdpi.com/2079-9292/5/2/19 |
| article html file updated | 5 May 2019 17:06 CEST | Update | - |
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| article html file updated | 1 July 2016 10:31 CEST | Update | - |
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| article xml uploaded. | 29 April 2016 12:34 CEST | Original file | https://www.mdpi.com/2079-9292/5/2/19/xml |
| article pdf uploaded. | 29 April 2016 12:34 CEST | Version of Record | https://www.mdpi.com/2079-9292/5/2/19/pdf |
