| article html file updated | 7 February 2020 08:25 CET | Update | https://www.mdpi.com/2079-6412/6/2/20 |
| article html file updated | 5 May 2019 16:20 CEST | Update | - |
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| article html file updated | 27 June 2016 12:32 CEST | Update | - |
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| article xml uploaded. | 10 May 2016 11:02 CEST | Original file | https://www.mdpi.com/2079-6412/6/2/20/xml |
| article pdf uploaded. | 10 May 2016 11:02 CEST | Version of Record | https://www.mdpi.com/2079-6412/6/2/20/pdf |
