| article html file updated | 11 February 2020 03:10 CET | Update | https://www.mdpi.com/2227-9032/6/4/147 |
| article html file updated | 11 October 2019 23:03 CEST | Update | - |
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| article html file updated | 26 December 2018 21:00 CET | Update | - |
| article html file updated | 14 December 2018 09:38 CET | Original file | - |
| article pdf uploaded. | 14 December 2018 09:36 CET | Version of Record | https://www.mdpi.com/2227-9032/6/4/147/pdf |
| article xml uploaded. | 14 December 2018 09:36 CET | Update | https://www.mdpi.com/2227-9032/6/4/147/xml |
| article xml file uploaded | 14 December 2018 09:36 CET | Original file | - |
