| article html file updated | 14 August 2026 18:35 CEST | Update | https://www.mdpi.com/2073-8994/9/11/251 |
| article html file updated | 8 February 2020 19:31 CET | Update | N/A |
| article html file updated | 28 September 2019 00:41 CEST | Update | N/A |
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| article html file updated | 30 November 2017 08:23 CET | Update | N/A |
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| article xml uploaded. | 1 November 2017 03:12 CET | Update | https://www.mdpi.com/2073-8994/9/11/251/xml |
| article pdf uploaded. | 1 November 2017 03:12 CET | Updated version of record | https://www.mdpi.com/2073-8994/9/11/251/pdf |
| article html file updated | 28 October 2017 11:47 CEST | Original file | N/A |
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| article pdf uploaded. | 28 October 2017 11:45 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/11/251/pdf-vor |
| article pdf uploaded. | 26 October 2017 11:11 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/11/251/pdf-vor |
