| article html file updated | 9 February 2020 00:26 CET | Update | https://www.mdpi.com/2075-4701/7/12/571 |
| article html file updated | 29 September 2019 07:16 CEST | Update | - |
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| article html file updated | 18 December 2017 13:16 CET | Original file | - |
| article xml uploaded. | 18 December 2017 13:14 CET | Update | https://www.mdpi.com/2075-4701/7/12/571/xml |
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| article pdf uploaded. | 18 December 2017 13:14 CET | Version of Record | https://www.mdpi.com/2075-4701/7/12/571/pdf |