| article html file updated | 14 August 2026 14:45 CEST | Update | https://www.mdpi.com/2071-1050/9/6/902 |
| article html file updated | 8 February 2020 06:49 CET | Update | N/A |
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| article xml uploaded. | 28 May 2017 02:45 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/902/xml |
| article pdf uploaded. | 28 May 2017 02:45 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/902/pdf |
| article pdf uploaded. | 26 May 2017 13:35 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/902/pdf-vor |
