| article html file updated | 11 February 2020 18:30 CET | Update | https://www.mdpi.com/1996-1073/12/5/768 |
| article html file updated | 15 October 2019 15:18 CEST | Update | - |
| article html file updated | 26 April 2019 11:28 CEST | Update | - |
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| article html file updated | 26 February 2019 06:15 CET | Original file | - |
| article pdf uploaded. | 26 February 2019 06:13 CET | Version of Record | https://www.mdpi.com/1996-1073/12/5/768/pdf |
| article xml uploaded. | 26 February 2019 06:13 CET | Update | https://www.mdpi.com/1996-1073/12/5/768/xml |
| article xml file uploaded | 26 February 2019 06:13 CET | Original file | - |