| article html file updated | 8 February 2020 20:50 CET | Update | https://www.mdpi.com/2078-2489/8/4/144 |
| article html file updated | 28 September 2019 09:11 CEST | Update | - |
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| article xml uploaded. | 10 November 2017 10:40 CET | Original file | https://www.mdpi.com/2078-2489/8/4/144/xml |
| article pdf uploaded. | 10 November 2017 10:40 CET | Version of Record | https://www.mdpi.com/2078-2489/8/4/144/pdf |
