| article html file updated | 7 February 2020 10:09 CET | Update | https://www.mdpi.com/2079-6374/6/2/25 |
| article html file updated | 5 May 2019 13:00 CEST | Update | - |
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| article html file updated | 4 July 2016 08:13 CEST | Update | - |
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| article xml uploaded. | 14 June 2016 13:30 CEST | Original file | https://www.mdpi.com/2079-6374/6/2/25/xml |
| article pdf uploaded. | 14 June 2016 13:30 CEST | Version of Record | https://www.mdpi.com/2079-6374/6/2/25/pdf |
