| article html file updated | 12 August 2026 19:03 CEST | Update | https://www.mdpi.com/2071-1050/5/4/1617 |
| article html file updated | 6 February 2020 01:34 CET | Update | N/A |
| article html file updated | 8 May 2019 06:09 CEST | Update | N/A |
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| article pdf uploaded. | 17 April 2013 13:49 CEST | Version of Record | https://www.mdpi.com/2071-1050/5/4/1617/pdf |
