| article html file updated | 9 February 2020 01:18 CET | Update | https://www.mdpi.com/2411-5142/3/1/3 |
| article html file updated | 29 September 2019 12:17 CEST | Update | - |
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| article xml uploaded. | 27 December 2017 07:45 CET | Original file | https://www.mdpi.com/2411-5142/3/1/3/xml |
| article pdf uploaded. | 27 December 2017 07:45 CET | Version of Record | https://www.mdpi.com/2411-5142/3/1/3/pdf |
