| article html file updated | 9 February 2020 06:46 CET | Update | https://www.mdpi.com/2073-8994/10/2/49 |
| article html file updated | 30 September 2019 20:07 CEST | Update | N/A |
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| article xml uploaded. | 15 February 2018 09:13 CET | Update | https://www.mdpi.com/2073-8994/10/2/49/xml |
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| article pdf uploaded. | 15 February 2018 09:13 CET | Version of Record | https://www.mdpi.com/2073-8994/10/2/49/pdf |