| article html file updated | 9 February 2020 13:45 CET | Update | https://www.mdpi.com/1999-4893/11/4/48 |
| article html file updated | 2 October 2019 14:34 CEST | Update | N/A |
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| article html file updated | 13 April 2018 16:47 CEST | Original file | N/A |
| article xml uploaded. | 13 April 2018 16:46 CEST | Update | https://www.mdpi.com/1999-4893/11/4/48/xml |
| article pdf uploaded. | 13 April 2018 16:46 CEST | Version of Record | https://www.mdpi.com/1999-4893/11/4/48/pdf |