| article html file updated | 9 February 2020 05:10 CET | Update | https://www.mdpi.com/2227-7072/6/1/16 |
| article html file updated | 1 May 2019 21:46 CEST | Update | N/A |
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| article xml uploaded. | 1 February 2018 10:36 CET | Original file | https://www.mdpi.com/2227-7072/6/1/16/xml |
| article pdf uploaded. | 1 February 2018 10:36 CET | Version of Record | https://www.mdpi.com/2227-7072/6/1/16/pdf |
