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| article pdf uploaded. | 20 December 2018 05:00 CET | Updated version of record | https://www.mdpi.com/2076-0787/7/4/116/pdf |
| article xml uploaded. | 20 December 2018 05:00 CET | Update | https://www.mdpi.com/2076-0787/7/4/116/xml |
| article xml file uploaded | 20 December 2018 05:00 CET | Update | N/A |
| article html file updated | 14 November 2018 10:13 CET | Original file | N/A |
| article pdf uploaded. | 14 November 2018 10:12 CET | Updated version of record | https://www.mdpi.com/2076-0787/7/4/116/pdf-vor |
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| article pdf uploaded. | 12 November 2018 12:40 CET | Version of Record | https://www.mdpi.com/2076-0787/7/4/116/pdf-vor |
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