| article html file updated | 9 February 2020 02:35 CET | Update | https://www.mdpi.com/2073-4352/8/1/27 |
| article html file updated | 2 May 2019 03:13 CEST | Update | - |
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| article html file updated | 1 February 2018 10:31 CET | Update | - |
| article html file updated | 10 January 2018 14:04 CET | Original file | - |
| article xml uploaded. | 10 January 2018 14:03 CET | Original file | https://www.mdpi.com/2073-4352/8/1/27/xml |
| article pdf uploaded. | 10 January 2018 14:03 CET | Version of Record | https://www.mdpi.com/2073-4352/8/1/27/pdf |
