| article html file updated | 12 August 2026 21:07 CEST | Update | https://www.mdpi.com/2227-9717/1/3/312 |
| article html file updated | 6 February 2020 05:43 CET | Update | N/A |
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| article html file updated | 19 August 2015 10:35 CEST | Original file | N/A |
| article pdf uploaded. | 25 November 2013 09:28 CET | Updated version of record | https://www.mdpi.com/2227-9717/1/3/312/pdf |
| article pdf uploaded. | 22 November 2013 11:59 CET | Version of Record | https://www.mdpi.com/2227-9717/1/3/312/pdf-vor |
