| article html file updated | 9 February 2020 13:41 CET | Update | https://www.mdpi.com/2078-2489/9/4/91 |
| article html file updated | 1 May 2019 03:45 CEST | Update | - |
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| article html file updated | 1 May 2018 04:42 CEST | Update | - |
| article html file updated | 13 April 2018 15:42 CEST | Original file | - |
| article xml uploaded. | 13 April 2018 15:41 CEST | Update | https://www.mdpi.com/2078-2489/9/4/91/xml |
| article pdf uploaded. | 13 April 2018 15:41 CEST | Version of Record | https://www.mdpi.com/2078-2489/9/4/91/pdf |
