| article html file updated | 14 August 2026 19:54 CEST | Update | https://www.mdpi.com/1999-4893/10/4/137 |
| article html file updated | 8 February 2020 23:24 CET | Update | N/A |
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| article xml uploaded. | 7 December 2017 11:55 CET | Original file | https://www.mdpi.com/1999-4893/10/4/137/xml |
| article pdf uploaded. | 7 December 2017 11:55 CET | Version of Record | https://www.mdpi.com/1999-4893/10/4/137/pdf |
