| article html file updated | 8 February 2020 06:43 CET | Update | https://www.mdpi.com/1996-1944/10/6/581 |
| article html file updated | 25 September 2019 00:26 CEST | Update | - |
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| article html file updated | 27 June 2017 10:41 CEST | Update | - |
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| article xml uploaded. | 25 May 2017 13:52 CEST | Original file | https://www.mdpi.com/1996-1944/10/6/581/xml |
| article pdf uploaded. | 25 May 2017 13:52 CEST | Version of Record | https://www.mdpi.com/1996-1944/10/6/581/pdf |
