| article html file updated | 9 February 2020 05:57 CET | Update | https://www.mdpi.com/1996-1944/11/2/262 |
| article html file updated | 30 September 2019 15:24 CEST | Update | - |
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| article html file updated | 14 March 2018 15:53 CET | Update | - |
| article html file updated | 8 February 2018 16:44 CET | Original file | - |
| article xml uploaded. | 8 February 2018 16:43 CET | Update | https://www.mdpi.com/1996-1944/11/2/262/xml |
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| article pdf uploaded. | 8 February 2018 16:43 CET | Version of Record | https://www.mdpi.com/1996-1944/11/2/262/pdf |
