| article html file updated | 7 February 2020 22:16 CET | Update | https://www.mdpi.com/1424-8220/17/2/237 |
| article html file updated | 23 September 2019 01:46 CEST | Update | - |
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| article html file updated | 2 March 2017 11:05 CET | Update | - |
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| article xml uploaded. | 4 February 2017 08:42 CET | Update | https://www.mdpi.com/1424-8220/17/2/237/xml |
| article html file updated | 26 January 2017 09:43 CET | Original file | - |
| article xml uploaded. | 26 January 2017 09:41 CET | Original file | - |
| article pdf uploaded. | 26 January 2017 09:41 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/237/pdf |