| article html file updated | 11 February 2020 15:50 CET | Update | https://www.mdpi.com/2309-608X/5/1/16 |
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| article pdf uploaded. | 15 February 2019 13:13 CET | Updated version of record | https://www.mdpi.com/2309-608X/5/1/16/pdf |
| article xml uploaded. | 15 February 2019 13:13 CET | Update | https://www.mdpi.com/2309-608X/5/1/16/xml |
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| article pdf uploaded. | 13 February 2019 17:29 CET | Version of Record | https://www.mdpi.com/2309-608X/5/1/16/pdf-vor |
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