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| article html file updated | 25 September 2019 23:18 CEST | Update | - |
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| article xml uploaded. | 19 July 2017 12:22 CEST | Update | https://www.mdpi.com/2226-4787/5/3/40/xml |
| article pdf uploaded. | 19 July 2017 12:22 CEST | Updated version of record | https://www.mdpi.com/2226-4787/5/3/40/pdf |
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| article pdf uploaded. | 17 July 2017 06:22 CEST | Updated version of record | https://www.mdpi.com/2226-4787/5/3/40/pdf-vor |
| article pdf uploaded. | 15 July 2017 10:20 CEST | Version of Record | https://www.mdpi.com/2226-4787/5/3/40/pdf-vor |
