| article html file updated | 11 February 2020 10:57 CET | Update | https://www.mdpi.com/2306-7381/6/1/12 |
| article html file updated | 13 October 2019 19:28 CEST | Update | - |
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| article xml uploaded. | 22 January 2019 18:08 CET | Original file | https://www.mdpi.com/2306-7381/6/1/12/xml |
| article pdf uploaded. | 22 January 2019 18:08 CET | Version of Record | https://www.mdpi.com/2306-7381/6/1/12/pdf |
