| article html file updated | 12 August 2026 19:21 CEST | Update | https://www.mdpi.com/1999-5903/5/2/282 |
| article html file updated | 6 February 2020 02:26 CET | Update | N/A |
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| article html file updated | 17 June 2015 09:55 CEST | Original file | N/A |
| article pdf uploaded. | 3 June 2013 09:41 CEST | Version of Record | https://www.mdpi.com/1999-5903/5/2/282/pdf |
