| article html file updated | 9 February 2020 04:15 CET | Update | https://www.mdpi.com/2075-4701/8/2/86 |
| article html file updated | 30 September 2019 04:53 CEST | Update | - |
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| article html file updated | 24 January 2018 17:20 CET | Original file | - |
| article xml uploaded. | 24 January 2018 17:19 CET | Update | https://www.mdpi.com/2075-4701/8/2/86/xml |
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| article pdf uploaded. | 24 January 2018 17:19 CET | Version of Record | https://www.mdpi.com/2075-4701/8/2/86/pdf |