| article html file updated | 10 February 2020 21:25 CET | Update | https://www.mdpi.com/2073-4336/9/4/93 |
| article html file updated | 28 April 2019 08:01 CEST | Update | - |
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| article xml uploaded. | 14 November 2018 16:35 CET | Original file | https://www.mdpi.com/2073-4336/9/4/93/xml |
| article pdf uploaded. | 14 November 2018 16:35 CET | Version of Record | https://www.mdpi.com/2073-4336/9/4/93/pdf |
