| article html file updated | 9 February 2020 14:15 CET | Update | https://www.mdpi.com/2225-1146/6/2/21 |
| article html file updated | 2 October 2019 17:26 CEST | Update | - |
| article html file updated | 1 May 2019 02:39 CEST | Update | - |
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| article html file updated | 26 June 2018 04:59 CEST | Update | - |
| article html file updated | 18 April 2018 03:38 CEST | Original file | - |
| article pdf uploaded. | 18 April 2018 03:37 CEST | Version of Record | https://www.mdpi.com/2225-1146/6/2/21/pdf |
| article xml uploaded. | 18 April 2018 03:37 CEST | Update | https://www.mdpi.com/2225-1146/6/2/21/xml |
| article xml file uploaded | 18 April 2018 03:37 CEST | Original file | - |
