| article html file updated | 9 February 2020 00:16 CET | Update | https://www.mdpi.com/2075-4701/7/12/568 |
| article html file updated | 29 September 2019 06:20 CEST | Update | N/A |
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| article html file updated | 15 December 2017 15:33 CET | Original file | N/A |
| article xml uploaded. | 15 December 2017 15:32 CET | Original file | https://www.mdpi.com/2075-4701/7/12/568/xml |
| article pdf uploaded. | 15 December 2017 15:32 CET | Version of Record | https://www.mdpi.com/2075-4701/7/12/568/pdf |
