| article html file updated | 9 February 2020 11:57 CET | Update | https://www.mdpi.com/1996-1073/11/4/801 |
| article html file updated | 2 October 2019 03:36 CEST | Update | N/A |
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| article html file updated | 30 March 2018 16:42 CEST | Original file | N/A |
| article xml uploaded. | 30 March 2018 16:41 CEST | Original file | https://www.mdpi.com/1996-1073/11/4/801/xml |
| article pdf uploaded. | 30 March 2018 16:41 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/801/pdf |