| article html file updated | 14 August 2026 17:13 CEST | Update | https://www.mdpi.com/2079-6412/7/9/137 |
| article html file updated | 8 February 2020 15:13 CET | Update | N/A |
| article html file updated | 26 September 2019 22:14 CEST | Update | N/A |
| article html file updated | 3 May 2019 03:47 CEST | Update | N/A |
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| article xml uploaded. | 3 September 2017 11:48 CEST | Update | https://www.mdpi.com/2079-6412/7/9/137/xml |
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| article pdf uploaded. | 3 September 2017 11:48 CEST | Version of Record | https://www.mdpi.com/2079-6412/7/9/137/pdf |
