| article html file updated | 10 February 2020 23:41 CET | Update | https://www.mdpi.com/2077-1444/9/12/389 |
| article html file updated | 28 April 2019 02:48 CEST | Update | - |
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| article html file updated | 26 December 2018 03:36 CET | Update | - |
| article html file updated | 27 November 2018 15:22 CET | Original file | - |
| article xml uploaded. | 27 November 2018 15:21 CET | Original file | https://www.mdpi.com/2077-1444/9/12/389/xml |
| article pdf uploaded. | 27 November 2018 15:21 CET | Version of Record | https://www.mdpi.com/2077-1444/9/12/389/pdf |
