| article html file updated | 9 February 2020 08:50 CET | Update | https://www.mdpi.com/1996-1073/11/3/572 |
| article html file updated | 1 October 2019 08:00 CEST | Update | - |
| article html file updated | 1 May 2019 13:50 CEST | Update | - |
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| article html file updated | 6 March 2018 17:49 CET | Original file | - |
| article xml uploaded. | 6 March 2018 17:48 CET | Update | https://www.mdpi.com/1996-1073/11/3/572/xml |
| article pdf uploaded. | 6 March 2018 17:48 CET | Version of Record | https://www.mdpi.com/1996-1073/11/3/572/pdf |
