| article html file updated | 7 February 2020 06:41 CET | Update | https://www.mdpi.com/1424-8220/16/4/464 |
| article html file updated | 5 May 2019 19:52 CEST | Update | - |
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| article html file updated | 29 April 2016 04:28 CEST | Update | - |
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| article xml uploaded. | 31 March 2016 13:13 CEST | Original file | https://www.mdpi.com/1424-8220/16/4/464/xml |
| article pdf uploaded. | 31 March 2016 13:13 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/464/pdf |
