| article html file updated | 14 August 2026 17:29 CEST | Update | https://www.mdpi.com/2075-163X/7/9/168 |
| article html file updated | 8 February 2020 16:06 CET | Update | N/A |
| article html file updated | 27 September 2019 02:57 CEST | Update | N/A |
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| article xml uploaded. | 18 September 2017 04:59 CEST | Update | https://www.mdpi.com/2075-163X/7/9/168/xml |
| article pdf uploaded. | 18 September 2017 04:59 CEST | Updated version of record | https://www.mdpi.com/2075-163X/7/9/168/pdf |
| article html file updated | 13 September 2017 15:12 CEST | Original file | N/A |
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| article pdf uploaded. | 13 September 2017 15:11 CEST | Version of Record | https://www.mdpi.com/2075-163X/7/9/168/pdf-vor |
