| article html file updated | 14 August 2026 17:35 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1998 |
| article html file updated | 8 February 2020 16:26 CET | Update | N/A |
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| article pdf uploaded. | 17 September 2017 08:43 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/9/1998/pdf |
