| article html file updated | 8 February 2020 22:16 CET | Update | https://www.mdpi.com/2410-387X/1/3/22 |
| article html file updated | 28 September 2019 18:28 CEST | Update | - |
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| article html file updated | 25 November 2017 12:45 CET | Original file | - |
| article xml uploaded. | 25 November 2017 12:44 CET | Update | https://www.mdpi.com/2410-387X/1/3/22/xml |
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| article pdf uploaded. | 25 November 2017 12:44 CET | Version of Record | https://www.mdpi.com/2410-387X/1/3/22/pdf |