| article html file updated | 9 February 2020 00:40 CET | Update | https://www.mdpi.com/2227-7102/7/4/92 |
| article html file updated | 29 September 2019 08:38 CEST | Update | - |
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| article html file updated | 2 January 2018 11:23 CET | Update | - |
| article html file updated | 20 December 2017 11:37 CET | Original file | - |
| article xml uploaded. | 20 December 2017 11:36 CET | Original file | https://www.mdpi.com/2227-7102/7/4/92/xml |
| article pdf uploaded. | 20 December 2017 11:36 CET | Version of Record | https://www.mdpi.com/2227-7102/7/4/92/pdf |
