| article html file updated | 8 February 2020 23:59 CET | Update | https://www.mdpi.com/2227-9717/5/4/83 |
| article html file updated | 29 September 2019 04:39 CEST | Update | - |
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| article html file updated | 13 December 2017 14:52 CET | Original file | - |
| article xml uploaded. | 13 December 2017 14:50 CET | Original file | https://www.mdpi.com/2227-9717/5/4/83/xml |
| article pdf uploaded. | 13 December 2017 14:50 CET | Version of Record | https://www.mdpi.com/2227-9717/5/4/83/pdf |
