| article html file updated | 9 February 2020 05:48 CET | Update | https://www.mdpi.com/2071-1050/10/2/426 |
| article html file updated | 30 September 2019 14:24 CEST | Update | - |
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| article html file updated | 7 February 2018 09:21 CET | Original file | - |
| article xml uploaded. | 7 February 2018 09:20 CET | Update | https://www.mdpi.com/2071-1050/10/2/426/xml |
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| article pdf uploaded. | 7 February 2018 09:20 CET | Version of Record | https://www.mdpi.com/2071-1050/10/2/426/pdf |