| article html file updated | 12 August 2026 19:27 CEST | Update | https://www.mdpi.com/2073-4360/5/2/833 |
| article html file updated | 6 February 2020 02:40 CET | Update | N/A |
| article html file updated | 8 May 2019 03:57 CEST | Update | N/A |
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| article html file updated | 17 June 2015 10:20 CEST | Original file | N/A |
| article pdf uploaded. | 19 June 2013 16:36 CEST | Updated version of record | https://www.mdpi.com/2073-4360/5/2/833/pdf |
| article pdf uploaded. | 18 June 2013 10:57 CEST | Version of Record | https://www.mdpi.com/2073-4360/5/2/833/pdf-vor |
