| article html file updated | 9 February 2020 03:05 CET | Update | https://www.mdpi.com/2073-4344/8/1/25 |
| article html file updated | 29 September 2019 22:07 CEST | Update | N/A |
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| article xml uploaded. | 15 January 2018 08:53 CET | Update | https://www.mdpi.com/2073-4344/8/1/25/xml |
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| article pdf uploaded. | 15 January 2018 08:53 CET | Version of Record | https://www.mdpi.com/2073-4344/8/1/25/pdf |