| article html file updated | 9 February 2020 03:04 CET | Update | https://www.mdpi.com/1999-4893/11/1/7 |
| article html file updated | 29 September 2019 22:04 CEST | Update | N/A |
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| article html file updated | 15 January 2018 08:19 CET | Original file | N/A |
| article xml uploaded. | 15 January 2018 08:17 CET | Update | https://www.mdpi.com/1999-4893/11/1/7/xml |
| article xml uploaded. | 15 January 2018 08:17 CET | Original file | N/A |
| article pdf uploaded. | 15 January 2018 08:17 CET | Version of Record | https://www.mdpi.com/1999-4893/11/1/7/pdf |