| article html file updated | 8 February 2020 00:33 CET | Update | https://www.mdpi.com/2312-7481/3/1/14 |
| article html file updated | 23 September 2019 14:32 CEST | Update | - |
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| article xml uploaded. | 6 March 2017 05:37 CET | Update | https://www.mdpi.com/2312-7481/3/1/14/xml |
| article pdf uploaded. | 6 March 2017 05:37 CET | Updated version of record | https://www.mdpi.com/2312-7481/3/1/14/pdf |
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