| article html file updated | 11 February 2020 09:03 CET | Update | https://www.mdpi.com/1996-1073/12/2/249 |
| article html file updated | 13 October 2019 09:35 CEST | Update | - |
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| article html file updated | 15 January 2019 11:12 CET | Original file | - |
| article pdf uploaded. | 15 January 2019 11:11 CET | Version of Record | https://www.mdpi.com/1996-1073/12/2/249/pdf |
| article xml uploaded. | 15 January 2019 11:11 CET | Update | https://www.mdpi.com/1996-1073/12/2/249/xml |
| article xml file uploaded | 15 January 2019 11:11 CET | Original file | - |