| article html file updated | 9 February 2020 03:20 CET | Update | https://www.mdpi.com/2075-4701/8/1/62 |
| article html file updated | 29 September 2019 23:38 CEST | Update | N/A |
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| article xml uploaded. | 17 January 2018 06:30 CET | Update | https://www.mdpi.com/2075-4701/8/1/62/xml |
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| article pdf uploaded. | 17 January 2018 06:30 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/62/pdf |