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| article html file updated | 16 July 2022 04:42 CEST | Update | - |
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| article xml uploaded. | 6 February 2017 09:42 CET | Update | https://www.mdpi.com/2076-3417/7/2/135/xml |
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| article pdf uploaded. | 6 February 2017 09:42 CET | Updated version of record | https://www.mdpi.com/2076-3417/7/2/135/pdf |
| article pdf uploaded. | 30 January 2017 10:57 CET | Version of Record | https://www.mdpi.com/2076-3417/7/2/135/pdf-vor |
