| article html file updated | 9 February 2020 00:37 CET | Update | https://www.mdpi.com/2071-1050/9/12/2264 |
| article html file updated | 29 September 2019 08:21 CEST | Update | - |
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| article html file updated | 2 January 2018 18:28 CET | Update | - |
| article html file updated | 19 December 2017 17:09 CET | Original file | - |
| article xml uploaded. | 19 December 2017 17:08 CET | Original file | https://www.mdpi.com/2071-1050/9/12/2264/xml |
| article pdf uploaded. | 19 December 2017 17:08 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2264/pdf |
