| article html file updated | 9 February 2020 09:27 CET | Update | https://new.mdpi.com/2079-9292/7/3/39 |
| article html file updated | 1 May 2019 12:34 CEST | Update | - |
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| article pdf uploaded. | 12 March 2018 13:35 CET | Updated version of record | https://new.mdpi.com/2079-9292/7/3/39/pdf |
| article pdf uploaded. | 11 March 2018 11:11 CET | Version of Record | https://new.mdpi.com/2079-9292/7/3/39/pdf-vor |
