| article html file updated | 9 February 2020 07:17 CET | Update | https://www.mdpi.com/2075-4701/8/2/145 |
| article html file updated | 30 September 2019 23:09 CEST | Update | N/A |
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| article html file updated | 22 February 2018 16:23 CET | Original file | N/A |
| article xml uploaded. | 22 February 2018 16:21 CET | Update | https://www.mdpi.com/2075-4701/8/2/145/xml |
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| article pdf uploaded. | 22 February 2018 16:21 CET | Version of Record | https://www.mdpi.com/2075-4701/8/2/145/pdf |