| article html file updated | 22 September 2021 10:10 CEST | Update | https://www.mdpi.com/1999-4893/10/2/71 |
| article html file updated | 22 September 2021 10:10 CEST | Update | - |
| article html file updated | 22 September 2021 09:49 CEST | Update | - |
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| article html file updated | 23 June 2017 04:22 CEST | Original file | - |
| article xml uploaded. | 23 June 2017 04:21 CEST | Update | https://www.mdpi.com/1999-4893/10/2/71/xml |
| article pdf uploaded. | 23 June 2017 04:21 CEST | Updated version of record | https://www.mdpi.com/1999-4893/10/2/71/pdf |
| article pdf uploaded. | 21 June 2017 12:25 CEST | Version of Record | https://www.mdpi.com/1999-4893/10/2/71/pdf-vor |