| article html file updated | 24 December 2025 13:51 CET | Update | https://www.mdpi.com/2218-273X/6/1/2 |
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| article html file updated | 28 March 2016 11:38 CEST | Original file | N/A |
| article pdf uploaded. | 6 January 2016 14:37 CET | Version of Record | https://www.mdpi.com/2218-273X/6/1/2/pdf |
| article xml uploaded. | 6 January 2016 14:37 CET | Original file | https://www.mdpi.com/2218-273X/6/1/2/xml |
