| article html file updated | 13 August 2026 09:37 CEST | Update | https://www.mdpi.com/2071-1050/7/1/180 |
| article html file updated | 6 February 2020 14:47 CET | Update | N/A |
| article html file updated | 7 May 2019 03:17 CEST | Update | N/A |
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| article html file updated | 21 August 2015 04:53 CEST | Original file | N/A |
| article pdf uploaded. | 26 December 2014 07:42 CET | Version of Record | https://www.mdpi.com/2071-1050/7/1/180/pdf |
